Poor service on faulty television

I bought the tv 3 weeks ago from Samsung's online store. It had a vertical dead-spot from the first day. I contacted Samsung to replace the faulty tv. They advised that it will take 14 working days for them to pick it up, then another 10 working days to assess the fault, and only then will I get a new one. So best case is probably 6 weeks to replace a tv that was faulty from the first day. After 13 working days, I got an email to say that they can't say when the tv will be collected as they are waiting on their logistics partner to give them a date. They have a call centre you can contact, but they tell you the same thing over again. When asked to escalate it to a more senior person, they just say someone will phone you back and are not willing to give a name and number you can contact someone. So there is nothing a customer can do to sort out issues, you are just at their unhelpful mercy. Don't ever buy from the Samsung e store!!!