Let my repeat clients save their payment info

I work with several repeat clients. They want to pay me quickly. They’ve given me feedback that it’s frustrating to re-enter their payment information. They have 1 company card or 1 bank account and just want to re-use that everytime. They would want their payment info secure still, so they may need to log in or verify it’s really them. That would help them feel safe.

This issue becomes really noticeable when I fire off multiple invoices quickly. Then they have to re-type the 16 digit card several times.