Damaged fridge delivery - Not keeping to promises

I have ordered a fridge and washing machine online and received the delivery very quick. However, when I unpacked the fridge I realized that it had a very bad dent.

I immediately contacted the call center and they advised me to send photos of the damaged fridge. After that was sorted out, the lady said that they will pick up the fridge later the afternoon and send it back to the store. Once it is at the store the will organize the delivery of a new one and it will be delivered the following day (Friday the 3rd of Nov) or latest Monday the 6th of Nov.

Later that afternoon she phoned to tell me that the will pick it up only on Friday the 3rd of Nov after 15:00 and I will get a new one by the latest Tuesday 7 Nov.

On Friday morning a different lady phoned me out of the blue to offer me a R500 voucher if I keep the damaged fridge. If I wanted a fridge with a dent it would have bought a demo model for much cheaper. Do you really think that R500 would compensate for that damage???

Nobody pitched on Friday afternoon to pick up the fridge and I am still sitting with the dented fridge. This is unacceptable as I have spent a lot of money at Dion Wired and paid an additional fee for delivery. I am getting very irritated now with the poor service delivery and empty promises.

When will this damaged fridge be picked up and when will I receive a new fridge? If I do not have my new fridge by Tuesday, the 7th of November as Promised the second time by the lady, I want a refund and I will buy it at a different place.