[Mayson]

Just to summarize, these are his rules:
"After-sales rules
Random purchase efficiency guarantee 50%-70%
Select BIN Can be purchased in small quantities for 2-5 tests
ALL DIE--No replacement, no refund, only guarantee the card number is valid,
Do you accept the rules, yes or no"
Also, he doesn't allow returns or exchanges. However, he offers the following:
100% live 1cc= 30$
not 100% live 15$
Bulk purchase 1cc=12$