If your card payments are declined, check the following:
Card suspension: For security, cards auto-suspend after 24 hours. Reactivate it in your account by selecting "Extend Activation."
Insufficient balance: Ensure your card is topped up with enough Rewarble vouchers for your purchase.
Region mismatch: Use your card in the correct region it's issued for to avoid declines.
Incompatibility: Some services may not accept VISA/Mastercard debit cards. Check the service's payment options.