1. Go to the counter or outlet of the card-issuing bank and apply for adding supplementary cards to the staff. When applying, you need to provide your ID card, the information of the original card and the personal information of the new deputy card holder.
2. according to the requirements of the bank, fill in the application form and sign it for confirmation.
3. The bank will decide whether to approve the addition of the supplementary card according to your application review. If your application is approved, the bank will issue a new supplementary card, which will be associated with your original card and enjoy the same account.