Utterly disappointed and angry at runaround given!

I think that it is utterly unprofessional and irresponsible for a reputable brand such as CNA to be treating customer queries in such a way. I don't understand how hard it can be just to follow upon a customer who has made the effort (time and money) to come to the store (on more than 3 occasions) to find out what is going on with his/her product! I had allowed for the supposed mandatory 4 - 6 weeks that the person with whom I had returned my tablet to said the item would take to repair to pass, and still no word from anyone at that store! To date, it has been 9 weeks since the tablet was returned! Then they respond to my email by saying \this query has been escalated with the repair agent and we will keep you updated as to the progress. Also we will have to wait from the repair agent to authorize us to credit you on this unit". It makes absolutely no sense to me how and why you (as the dealer who sold me this item directly) has to take instruction from your supplier? This is an utter inconvenience and a waste of my time! Your simplest solution to all of this would have been just to refund me"