I totally agree with the above. VCCs (virtual cards) bins which do not show card type as prepaid and do not show card type as virtual, do get accepted for threshold GAds.
Now some people may say "VCC means virtual cards, prepaid cards" .... Yes, VCC are virtual and VCC are prepaid, HOWEVER there are VCC cards bins which show card type as "credit card" or "debit card" and not as prepaid or virtual and it is these VCCs which do work for threshold GAds accounts, ofcourse apart from these, normal credit, debit cards are also obviously good to use (also depending on country, bank account, vba, Paypal, etc).
So,
@ppcads is correct, many VCCs still do work.
Using same domain in account after account : Yes, possible (I am doing it as well), but as with other things, in this as well, there is a minor campiagn related tweak, in order to use a domain that has already previously been used in GAds account(s).
Fact and reality about GAds, about internet marketing, about life and about our world, is that different people implement something or a particular thing in their various (respective) different ways and hence get various different (respective) results. So, if Mr.A gets result "1" (correct result), but Mr.B gets result "2" (wrong result) and both attempted the same thing, then sometimes the Mr.B will not believe Mr.A, although Mr.A's result is the correct result, because Mr.A will be under the idea that they both attempted the same thing, without realizing that each one of them implemented the same thing in different ways.
So, the same goes with many things in life and one of those many things in life could be GAds accounts, where people must realize that IPs, proxies, cards, etc are only the ingredients (resources), but what matters more that the ingredients (resources) is the account creation method.
@ali78691 mentioned "seriously. you have 10 years' experience." ..... I do see logic in what you've mentioned, because many people do not yet realize, that the way internet marketing has now evolved, experience means nothing, it is the knowledge & skills that matter (Nowadays, there are school going kids earning thousands of dollars a month in internet marketing. They have experience ? No. They have the knowledge & skills. Experience mattered in the 70's, 80's, etc, where change was non-existent. In today's time, (referring to internet marketing), experience means nothing, it is all about knowledge & skills.