Very disappointed

I bought a Fridge/Freezer on Fri 01/04/2016 collected it on Sat 02/04/2016. Mon 04/04/2016 fridge was still not getting cold. Reported it to the store. Store then requested proof of payment which was the sent to them. after numereous emails to them i am still waiting for a time for when the new fridge will be delivered. this is really bad customer service/feedback. i dont see why i should be following up all the time to recieve any feedback when i recieved a fault appliance, i am the one who is suffering as now everything in the fridge has gone off. So much for customers comes first...