What bank do you have? o.O With BoA if i don't want a purchase going through all i have to do is put the wrong PIN in at an atm 3x & the number used by company x to bill me is locked out. Also, they will freeze the acct if you ask them to for 24 or 48 hours. Blocking specific transactions isn't legal, you could end up doing it all the time & end up stealing products/services.
