1. Contact the bank. If the printing quality of the black stamp on the certificate of deposit is serious, you can contact the issuing bank or the certificate of deposit management institution for reprinting or replacing the certificate of deposit. At the same time, you can also ask the bank to issue a certificate to prove that the deposit certificate is legal and valid.
2. Check the deposit slip information. If the contents of the deposit certificate are correct, you can check whether the information on the deposit certificate is consistent with your own information to confirm the authenticity and validity of the deposit certificate. When looking up information, you can refer to other banks' relevant documents and records, such as bank statements and transaction records.
3. Provide supporting documents. If the black stamp on the deposit certificate is uneven and the words become slight, you can provide a copy of your ID card, a copy of your bank card and other supporting documents to prove the authenticity and validity of the deposit certificate.
It should be noted that if the printing quality of the black stamp on the deposit certificate is serious, the credibility and validity of the deposit certificate may be affected. Therefore, it is suggested to contact the bank or the deposit certificate management institution in time and request to reprint or replace the deposit certificate.