Unprofessional and very rude.

I took some appliances at Lewis in Motherwell Port Elizabeth. Ask them to do a debit order, they failed to do that. Got a call a few times but due to my busy schedule, I could not got to the store to do a payment manually, exactly the reason why I said they should do a debit order. The manager or whoever it is named Chumani or something along those lines calls me and clearly tells me that I cannot afford the appliances amongst other rude things he said. He tells me he can come and fetch the money wherever I am, I told him I will not give him any money because I do not know him and I do not have any guarantee that he will pay it at Lewis, unprofessional. Secondly, I told him that I spoke to the Head Office lady that called me and we made arrangements for the 8th of August, why are they not communicating with the Head Office which is above them? Only to find out, the account number they have put down for a debit order was incorrect.