Call centre no working

I have a Defy fridge that I purchased at Game stores on 16 December 2012. I also bought an extended warranty. On 16 December 2017 the fridge stopped cooling and made funny noises. I tried to phone the Extended warranty line on Saturday, but they only work from Monday to Friday and not on public holidays. Unfortunately Saturday was both.

I contacted them on Monday, After holding on forever they logged the job/call. Nothing happened further on Monday. On Tuesday I followed up and they assured me that Defy will contact me soon, as in the next day. This also happened after holding on for very long and being cut off several times. Today is Wednesday. Nothing from Defy and Nothing from Mutual and Federal. I tried phoning them this morning again, but no answer. I gave up after 30 minutes. No one has contacted me yet to make an appointment for repairs or even just an assessment.