I don't know if this is the case, but it feels more likely that the fewer transactions you charge back through your bank, the more likely you are to successfully charge back?
And the more spread out, different merchant names, like one or maximum two from each merchant, will also raise the chance of getting a successful charge back I think.
But I am thinking it's like this, if you have 10 transactions to the same merchant name, your bank would wonder why you made the other 9 if the first one didn't get delivered, or something like that.
In this case maybe better just charge back one and say no delivery or something.
Two transactions could work, you just say, ah I missed that the first went through so I made another one, or something like that.
But it will also depend for what reason you make a charge back and also I guess depend on your bank.
The least you should all contact the casinos and tell them you are going to make a chargeback because of the MCC. Most if not all, will not make any refunds, some might, but the best thing is that they will block your account and hopefully also that you end up on some blacklist and can't open more casino accounts. That's the biggest win.
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