Bad online shopping experience at GAME

Bad experience shopping online at GAME. I ordered a comforter set for my son. When placing the order it does not give you an option to choose the size. Since it was a gaming comforter set, I assumed it would be a size single. When I received the order I realised it was for a Double bed. I have locked an exchange online, 7 days ago but besides the email informing me of my exchange and a reference number, I have not heard from them again. I called the customer service yesterday. And despite me having a reference number for the request for exchange, they have mo record of me logging it. They promised me yesterday that they would be escalating the exchange request. But up to date nothing. Instead when I called them they asked if I could return it to my nearest Game store. I explained that I ordered it online and it is more convenient if they collect it from me. Needless to say I am still waiting...