Why does my card have a restriction on it

Read again -> Related Article -> If your Apple Cash account is restricted or locked

👉To prevent fraud, ensure account security, and comply with regulations, your Apple Cash account may be restricted or locked. Your account may also be restricted if you dispute an unauthorized transaction with your bank and a chargeback is filed. Your account restriction or lock may be temporary until you verify your identity or while your account is under review, or you may need to contact Apple Support for next steps.