Cellphone Nightmare

I purchased a cellphone for my son's birthday in November at Mr Price Alex Mall, little did I know that it was the beginning of my problems. The phone purchased is an Itel40 via Telkom network. A month later in December the phone went blank and was nothing was displaying on the screen although there was sound in the background, I took it in and I understood that it is December time and and most business will be closed. In January I went to the store to follow up and the phone was still not back from repairs, only towards the end of January I got a new phone as the employees were very helpful and their hands were tied which I understood. The new phone worked for 1 month and it was not charging anymore, I again took it back to the store and was told that it is going in for repairs, this time round I am not getting any updates I have to use my own petrol and keep on going to the store only to be told that they are still waiting for Telkom. It is almost 6 months and I have never had the joy to use the phone, I would like to have the cellphone amount credited back into my account I no longer want that phone anymore. Till this day I have not received any feedback and ofcourse I will need to go to the store and they will tell me the same story that they still waiting for Telkom, I regret buying that phone and I am no longer interested, please refund my money.