App / Casino
Every term you see in the lobby, on a payout screen, or inside your account wallet has a plain meaning — and this page gives you those meanings in one place.
When you know what a term means, every screen in the lobby makes sense faster. Volatility tells you how a slot pays over time. Rollover tells you what you must do before a withdrawal clears. House edge tells you the math behind a live table.
Terms appear in different parts of the site depending on what they describe. Knowing which family a term belongs to helps you find the right screen to act on it.
RTP, volatility, paylines and multipliers sit on the game info sheet you open from any slot tile. In live dealer rooms like Baccarat FireStorm, the same panel shows side-bet names and table limits rather than payline counts.
Decimal odds, Asian handicap, over/under and handicap lines appear inside the sportsbook, mostly on cricket markets such as BPL Final Live. Each term has a numeric value next to it; the glossary below explains what that number means for your stake.
Deposit, withdrawal, e-wallet, pending and rollover are the words you encounter on the cashier screen. Your bKash, Nagad or Rocket transaction shows a status label here — knowing what each status means stops you raising a support ticket unnecessarily.
KYC, verification, account tier and session all appear in account settings or in a notification when your wallet is flagged for a document check. Complete the steps shown on your account page; the glossary below explains each term before you start.
The six terms below come up most often when you are browsing slot rooms or live tables. Each definition is kept to the point so you can confirm the meaning and move on.
RTP stands for Return to Player. It is the percentage of total stakes a game is designed to pay back over a large number of rounds.
House edge is the mathematical advantage a game holds over the player in the long run. It is the mirror of RTP carries a 4% house edge.
Volatility describes how a slot distributes its payouts. High-volatility slots pay out less often but in larger amounts when they do hit. Low-volatility slots pay smaller amounts more frequently.
A wager or turnover requirement is the total amount you must stake before a conditional balance can be withdrawn. For example, if a promotional credit carries a 10x turnover, you must place stakes equal to ten times that amount.
A jackpot is the largest prize tier available in a specific slot or prize-style feature. Some jackpots are fixed amounts set by the provider; others accumulate as players stake. tk 399 does not publish jackpot amounts independently — the figure shown is drawn directly from the provider game interface.
A live dealer is a real person, filmed in a studio, who runs a card or table game via video stream. You place bets through your screen while the dealer draws cards or spins the wheel in real time.
These six terms cover the sportsbook, payment rails and account verification screens — three areas where unfamiliar language most often causes friction. Read the definition, then check the matching screen in your account.
Asian handicap removes the draw outcome from a football or cricket market by giving one side a virtual head start. For example, a minus-0.
Over/under is a market where you predict whether a specific statistic — runs scored, total goals, or match points — will finish above or below a line set by the sportsbook.
Rollover is a specific version of the turnover requirement that applies before a withdrawal is processed.
An e-wallet is a digital payment account you use to send and receive money without a bank card. On tk 399, bKash, Nagad and Rocket are the e-wallet options.
KYC stands for Know Your Customer. It is the identity verification process your account goes through before large withdrawals or account tier upgrades are released.
Decimal odds show the total return per unit staked, including your original stake. Odds of 2.50 mean a one-unit stake returns 2.50 units if the selection wins — a profit of 1.50. All tk 399 sportsbook markets display decimal odds by default; you can confirm the format in the sportsbook display settings.
Glossary terms are most useful when you see them working together in a real decision. Say you open the slot room and notice two tiles — one showing high volatility, one showing low.
Before entering a slot room, check the volatility label on the game info sheet. High volatility suits a longer session with room for variance; lower volatility suits shorter sessions. This label is the provider's published data, not an operator estimate.
When a Cricket BPL market settles, your payout appears in the account wallet. The decimal odds you accepted already include the returned stake, so subtract one unit to find the net profit. This avoids misreading a return as pure gain.
If your cashier page shows a rollover balance, the withdrawal button will remain locked until the required stake total is met. The remaining amount is displayed live on the page — place qualifying bets, then return to the cashier to release the withdrawal.
A bKash withdrawal above a certain threshold may trigger a KYC prompt in your account. The verification tab lists the required documents and the upload field. Completing this step once removes the block for subsequent transactions at the same or lower amount.
If a term on your account screen still does not make sense after reading the glossary, reach out through the routes below. We can clarify what a specific field means and what action it is asking you to take.
Open the chat icon from any page in the lobby. Describe the term or screen label you are unsure about and an agent will explain what it means for your specific account state.
Send a message through the contact form in the account help section. Include a screenshot of the term or the exact label text so the team can locate the correct screen and give you the right explanation.
The help section inside your account lists common term questions alongside the relevant account screen. Check there first — many KYC, wallet status and rollover questions are answered with step-by-step field descriptions already published.
These questions are about actions and flows — what to do once you understand a term and want to act on it inside your account.
Open the slot tile in the lobby and tap the information icon before entering the game. If the provider has published an RTP figure, it appears on that info sheet. We display the figure only where the provider exposes it; not every title includes this data.
Go to the cashier section in your account and select withdrawal. If a rollover condition is active, the page shows the remaining stake requirement alongside the locked amount. No separate calculation is needed — the current balance is displayed in real time on that screen.
The KYC process uses the documents listed in your account verification tab, not a payment method number. Your bKash number may already match your registered account details, but the verification step itself requires the identity documents shown on the account settings page.
The odds format is independent of your deposit method. When you fund your account through Nagad and place a sportsbook bet, the decimal odds on screen apply to your stake in taka exactly as displayed. Your return amount is shown in the bet confirmation before you confirm the selection.
Your session carries across devices through your account login. Any open bets, wallet balance and account status remain the same when you log in on a different device. Pick up exactly where you left off — no manual sync is needed on your end.
Handicap market availability depends on what the sportsbook has published for a specific match. BPL cricket fixtures sometimes carry run-line or over/under markets that function similarly to handicap formats. Check the open market list for each match inside the sportsbook section of the lobby.