Do not assume a code can be added later. Check the operator immediately. Never create a second account just to retry a referral unless the operator explicitly permits it.
Post-registration rules by MainGame partner
| Operator | What has been verified | What to do |
|---|---|---|
| Stake | Stake's official help says an eligible new account can add a valid welcome code from Account > Offers within 24 hours. | Follow the Stake code steps. |
| Goated | No equivalent universal post-sign-up window has been verified by MainGame. | Ask support to confirm whether MAINGAME is attached before depositing. |
| Howl | Referral attribution is normally connected at registration; existing-account changes need operator confirmation. | Read the current Promo Receipt and contact support. |
| Other partners | Rules differ and may change. | Use the current Promo Receipt, not an old social post. |
What to do immediately after missing a code
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Do not deposit yet
Resolve the offer and referral status before spending money.
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Check the account Offers or Promotions page
Look for a code field or attached promotion.
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Contact operator support
Give the account identifier, registration time and expected code.
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Keep the reply
Save the written confirmation and current terms.
Why operators restrict late codes
A referral is often assigned during account creation. Changing it later can affect attribution, promotion eligibility and abuse controls. MainGame cannot alter an operator account or guarantee a retroactive change.
Where should I enter a code next time?
Start with the general casino promo-code guide. For the current featured route, see where to enter Goated promo code MAINGAME.