DISGUSTED IN HI FI CORP - PROMENADE MITCHELLS PLAIN

We purchased a TV in 2016, cane with an 2 year warranty, we then to be safe paid for extended Warranty. The 2 years just depleted and the screen died the sound was still working on the tv. We took the TV in and was advised that it takes 21 days, no one got back to us on the progress on the tv. I called in and low and behold the tv has been their all along fixed as per the repair center. Collected the TV and then 2 weeks later boom same problem, as per the store we have to wait another 21 days before the factory makes a decision on whether to repair again, not knowing what was fixed the previous time. We call every 2nd day and the Manager dealing with the repair finds us extremely nuisance and customer service is so pathetic that he sounds very frustrated talking to myself or husband on the phone. We have still not received any feedback, they cannot issue a credit because they have to send it back to manufacturer, however i have paid HIFI for the TV and for the extended warranty yet they dont have answers for me. I will never but a darn thing from them in my life.