Faulty phone and poor service from Ralton Jacobs,Zizi DYantyi, Total sports

On the 2nd of March i bought Spark 6 Go in Total Sport Zevenwacht Mall. Within 2 months of using the phone, the phone started freezing and it will go blank just like that, it also takes forever to switch back on. I took the phone back to the store and the guy assisted booked the phone for repairs and it came back saying that the IMEI number was not registered. What the hell , i'm really ****ed as i'm writing this because i spend my damn money to buy this phone. They then gave me a new phone and i told them i no longer want the phone, the only thing i want is for my money to be credited back into my foschini account. They refused they gave me the new phone that also was not charging and freezing as well, i took it back to the store they still refused to assist me and this time i was helped by the store manager Ralton Jacobs who was very rude, Today i went back again because the phone is not charging and if it does charge it takes the whole day just to charge up to 12%, They told me its my fault that the charging port is not charging and the is nothing they can do, The store assistant told me that **** Zizi Dyantyi. I am so ****ed. They Know that the problem is on their side but they fail to take accountability, its not even 6 months of using the phone and i've been to the store 3 times already with the same thing. I want my money back in my Account, Techno Spark 6GO , Total Sports