Bad experience

I purchased a headset however I wasn't aware the input will not correspond toy laptop as I work in a call centre. However I tried to do a exchange but u thought if I do the exchange they will give me the option to change it for something else instead they did a exchange for the same thing. Before they could deliver the other one I canceled it for then to return the one I had. When I called the lady told said she will schedule it for them to collect it at my address. I discovered she never did that so she scheduled it for me to drop it and that wasn't our agreement. I called back and and they Apologized and said they will send the query away to another department. I contacted then the next day again they said they waiting on feedback. It was weekend heard nothing then the Monday I called back again the guy said they will schedule it for the 22nd November, they came to collect it last week Tuesday up until today there's no changes on my account and I haven't heard of them. I'm so disappointed in them honestly. I sent a email again today with no response until now. It was my first purchase with them I so wanted to order another headset as I'm working from home but I'm done I'm sorry they disappointed me big time