Benefiting one customer at my expense

So I married a divorcee! His ex's mail still comes to our house, she's impossible and an idiot so she refuses to change her postal address, I called Foschini (with whom I also have an account) asking them to contact their customer re her address as I have a protection order against her and she uses her mail as an excuse to come to my house. The lady I spoke to promised it would stop, it didn't. I've just had the woman screaming at my gate that she needs her mail from TFG as she's expecting her statement. Does a customer request not mean anything? Do you want a copy of my protection order? Do I have to close my account so that you can take me seriously? Would you like her to physically assualt me for a TFG envelope? Stop sending her junk to my house she doesn't live here!