I agree with lyt20060830’s reply. The so-called "signature" does not mean that it must be the same as your name, it is just a sign. You only need to be able to sign something with the same font later

The other two people are talking nonsense. The credit card signature strip is special and has an eraser. Sassafras is easy to break and will change color after being applied with chemicals. Such cards are no longer usable than cards with typographical signatures. The cashier has the right to confiscate cards with altered signatures.

If you really care, just pay the bank to get a new card