Manager who **** that she will refund

To whom it may concern <br> <br> My grandmother bought a fridge with the brand name Fridge Star on the 27 of February 2016, When she got home with the fridge I switched it on and waited for 24 waiting period before i can put any food. However on the Monday morning we realized that the Fridge does not work, the i turned the switch level to maximum hoping that when i get back to work it will have reached freezing point. when coming back from work we then realized that the Fridge is not working. I told my grand mother to report this immediately to the Shop where she bought it. when they never responded then i told her to return the fridge that Friday, the shop asked her to return with it at home and that it works but never worked.<br> <br> On the 05th on March Me, my grandmother and uncle went to the shop to complain and get the refund back, manager agreed but never wanted to pay us back, we called and complaint to customer support for Lewisgroup and they say that the manager says my grandmother is fine with the new fridge that they swapped with the damaged one however this is false. <br> <br> we have the audio in it the manager agrees to refund us back. <br> <br> Please assist