I received an email the other day from my supplier warning me about scams and how they will never ask for my bank details.
Why should they? I pay direct debit therefore they already know my details.
At the same time telling me how they are going to pay me my refund, which by the way, wasn't just putting all the money into my account.
That would be easy, they have come up with their own formula and it isn't A+B=C.