You can add funds to your wallet using a valid payment method or wallet top-up voucher. Wallet funds can then be used to purchase content and services from PlayStation™Store. … If you’re buying a subscription with wallet funds, you may still be required to add a payment method to your account.

Why does PlayStation say my card is expired?

Please check the expiration date of your credit card. If this error appears, the credit card you have registered on your account may have expired.

Why is there no wallet on my ps4?

 

Likely because they created a master/regular account. It’s not a sub, so wallet can’t be shared. It sees him as an adult (18+), not a child (likely they put a false birthday). Reason there is a parent/guardian checkbox.