I ordered a tv online at game on the 25th of October

I ordered a tv online at game on the 25th of October. They delivered the wrong TV on the 4th of November. I sent them an email on the 5th and followed up with a phone call and they promised to take back the TV and deliver the correct one. I keep following up but there has been no progress. They keep telling me once the collection is booked they will inform me