Repairs not carried out

Good day<br> I have brought my TV for repairs to HiFi under the extended warranty in September 2015, repairs took over a month and I received the TV back 12 November 2015. TV was taken back on the 12 December 2015 and returned on 12 February 2016. Fault still existing. Told to bring it back again for repairs. Warranty is now expired. I think I need to get clarity if this TV could not be fixed at the time in September, why was it not replaced? up to now its still not fixed so it should be replaced as its now proven after almost 3 months, its still the same. <br> Can I get clarity and closure to this?