What should update after payment
After a successful payment, the account should reflect a higher credit balance and the billing page should show the purchased pack under Last Purchase.
If the pack unlocks a higher entitlement, the Current Plan should update to match that entitlement for normal user accounts.
- Buy Basic: Current Plan should show Basic
- Buy Standard: Current Plan should show Standard
- Buy Business: Current Plan should show Business
When the account already had a higher plan
If the user already unlocked a higher entitlement, a smaller later top-up should only add credits and update Last Purchase. It should not downgrade access.