In order to improve the success rate of card handling, you can submit qualification certificates and sufficient financial certificates to the salesman. For the sake of safety, it is best to submit the materials in the form of copies. Don't let the salesman upload photos directly by mobile phone or ipa, including ID card and work permit, and try to avoid information leakage.
The advantage of applying for a credit card at home is that you don't have to sign it in person, but the success rate is high, which depends on the applicant's credit conditions. The better the credit conditions, the higher the comprehensive score given by the bank evaluation and the higher the success rate of card handling.