Repair process and customer service…

Repair process and customer service awful. My nintendo switch Oled has major issues some of which are an orange screen and broken fan. When I called them on the 4th February and explained the issue I was told not repairable and I would probably get sent a new one. I saved my acnh island game to their server and sent it off on 5th to which I have confirmation received 6th. I sent the console, 2 joycons, and dock along with proof of purchase which was required to confirm Warranty. On the 9th, I received an email with a cost of £102 to fix it, of course I was furious as it is in warranty and should be free. I called them and they advised as it was purchased via a seller on amazon they didn't confirm warranty, so this obviously delayed the repair. I have been on phone to them daily at this point. After speaking to yet a different customer service member, they advised the console would be repaired for free . I received yet another cost estimate showing that the dock would cost £45 as it has broken pins. I rejected this cost as I advised them I had another dock so wasn't paying that for it to be repaired when a new one is around that price. At this point I am getting more frustrated. I called them again to be told that the cost was for a new dock not a repair, but because I rejected the estimate, the repair order had to be processed again.. more delays. I asked to make a formal Complaint or speak to a manager, as I wanted my console back by 15th February as I wanted to do part of my ACNH game on 16th. All they said was no way of doing complaint, that speaking to them is all I could do, and they couldn't put me through to a manager and they don't do call backs. I have now bought another switch in the meantime, so to enable me to play the game, but I have asked them if my progress can be uploaded to the new console or do I need to upload it to the old one. They can't give me an answer on the phone as it needs to be escalated to relevant team. I am still waiting for an answer, how can it be so difficult to advise, they won't just place you on hold and ask the relevant department, everything needs to have an incident number and requested via email!! I have never had such rubbish customer service. You can't call over weekends, only email. So the customer is just waiting for them to finally decide to update. Such poor customer service.