To the OP:
It's unfortunate that you had to go through an experience dealing with fraudulent purchases made on your credit card, but the bottom line is, as long as you were able to get your funds reutrned, that's what matters. Bad-mouthing a company for their handling of this issue is subjective, unless there are a large number of similar circumstances with other customers. Yes, they could have handled you issue with a little more sensitivity, but, understand that their is no one approach, from all companies that offer online transactions, to responding to this situation.
Amazon, Barnes and Nobles, Best
buy, SONY, Microsoft--all of these companies have had the misfortune of being on the receiving end of a complaint like you offer about Mad vapes. The companies listed have been involved in their share of accounts being hacked, and I can guarantee you, none of them handled the complaints in a similar fashion. Now, I've never purchased anything from Mad Vapes, so I can see both sides of this issue--those defending the company as one with which they never had a problem, and yours, in which you have had a very unpleasant incident occur. Most people who have gone through what you have won't order from that particular company again, which is understandable. Those who have had no problems with that company will continue doing business with that company, which is also understandable.
I sincerely hope that no one has to go through the experience of credit card fraud. Most people who do online purchasing take the precautions of protecting their banking information as best they can. If anything, a story like this may make people more cautious, which is a good thing As long as Mad Vapes was able to handle the situation in which your funds were returned, that should be the end of the matter. Whether you decide to continue to do business with them is, of course, your perogative. Understand, though, that just because you may not be able to convince a majority of posters here that they are a bad company does not make them irresponsible, either individually, or as a forum community.