I'm not sure you do? Because virtual cards are credit cards, afaik they're exclusively credit card linked, or at least bank account linked through a debit card type system. You need to have a standard card/account to get one (and at least in America getting a credit card is utterly trivial though it may not be a good one granted) and have identity.
>Assuming you can create infinite virtual numbers you could, theoretically (and I appreciate it's probably not the case here as the poster has account history), switch/cloak/whatever a whole bunch of high converting against policy stuff until the account is banned, at which point you set up a new ad account, new virtual number and start again. Rinse and repeat.
Virtual credit cards are still linked to you. Your name and mailing address and whatever else is required for normal credit card validation is still required. They're not a tool for anonymity, they're exclusively for dealing with issues on the seller side (ie., they get hacked, or are fraudsters).
>"if you have nothing to hide you'll use a fixed number".
But literally everyone does have something to hide: their fixed credit card number/crc/date, since that is an irritation to deal with if it gets stolen. It's not a public key unfortunately. Virtual CCs are a hack essentially to help bring some of the benefits of a more modern system that was fully tokenized (like Apple Pay and co) or used proper asymmetric crypto to legacy systems, at the cost of forcing more manual effort by the user. It's in the same bucket as password managers, ideally password auth would have long since ceased to exist, but in the mean time password managers help a bit with the garbage fire of the current authentication world.
