Custom Made Covers unethical behaviour

I ordered an amplifier carry case from the business. In fact this was a repeat order, This time things went all wrong. First the order got lost because the owner shipped to the wrong address (taking note that this is a repeat order) . After some up and downs to post offices, the parcel was returned to the sender and it was shipped again to me with the correct address this time. After about two months or so I finally received the parcel and guess what, this is not what I ordered. (taking note that this is a repeat order). I contacted the owner (Mike) to find out why he sent the wrong item. He said he will sort it out and that was the end of our conversation. He no longer takes my calls nor reply to my messages, both email and whatsapp. He actually hangs up as soon as he hears my voice. It has been over a year now and I have not heard from him. I consider this kind of behaviour to be unethical. I have been doing business with them for more than four years, now this. MY money is gone down the drain and I am stuck with an item that I do not need at all.