it will be good if you provide the vcc with it.
That's not really possible. RFX
could sell AWS accounts with vccs, or AWS account generator with vcc generator, but he can't sell AWS generator with vcc. Vcc is a particular thing for a particular AWS account, you can't sell a generator (that could generate many accounts) with a particular vcc (which can be usually used with a single account). But he will advice you on how to get (or, "generate") vccs, or so he says.
Just to be clear: each created account *has* vcc and phone number attached otherwise it could couldn't be verified.
typo