Faulty Fridge

I purchased a Defy Fridge at Pick n Pay Maponya Mall on the 27th June 2019 and it was delivered to my home on the 29th June 2019, we only opened the fridge on the 30th June 2019 and realized that the water dispenser is faulty. I called the Maponya Store when i got to work on the 1st July 2019 to advise them regarding the fault on the fridge and i spoke to Belinda who said i should come to the store for assistance even though i told her i can as i knock off very late. called again on the 4th July 2019 and Belinda referred me to the manager by the name of Astra and he advised he will assist me further regarding and replace the fridge but he never fulfilled his promise. on the 23rd July 2019 i then called the head office and spoke to Nomcebo from customer service and she connected me to the Store and unfortunately Astra wasn't available i was connected to John who promised to help me further aswell, John called me back on the 25th July 2019 advising that i can be refunded back or they will fix my fridge and wont compensate for selling me a faulty Fridge and i told him i wasn't happy with how they are handling the issue, i called the store on the 26th and asked for Astra or John to give me a callback but till now the 29th July 2019 i haven't received any communication, Pick n Pay Customer service is pathetic i was assisted by Simora and he was speaking to me as if he's bored and tired and wasn't willing to assist, he dropped the phone on my ears while i was explaining my complain ...... Pick n Pay please assist me i am very disappointed with your services.