Game Disappoints

We purchased a laptop online on 24 April 2023. It was delivered on 2 May 2023. From the start, there was a battery issue (only lasted 15 mins) and on 15 May we reported it. The laptop was collected by Game's couriers on 24 May 2023 to be sent for "assessment". It is now 8 June and we were advised that we could have to wait a further 21 days. This is unacceptable and we demanded a new laptop or a refund. No response so yesterday I demanded a refund. Not a peep from the so called "Service Centre". So frustrated and disappointed. Prepare for the worst if you buy from them