making purchases using visa

[Elaine]

do you have to have a minimum spend before you can claim off visa for a company that has failed to supply you with goods ordered? i ordered printer cartridges off a website last week and they've sent me the wrong stuff. now when I try to log into their website I can't, nor can i trace the actual items I ordered on it. also when I phone them they say they'll need to look into it and get back to me but I'm not sure I believe them!