Unfair practice by Foneyam

Hi , I purchased a phone ( Samsung A05s ) and after 3 days the phone just switched off. I took it back to the store for a replacement,

Store agreed to give me a new phone, So the sales assistance tried to scan a few A05s phones and they where refusing to scan , so he went to take more phone and he mistakenly took A05 ( Non S version ).

The non S version scanned and we only find out the mistake when they where about to give me the phone, He tried calling Foneyam and they refused to amend the error, they suggested I take that phone and pay a lesser installment because this was a cheaper phone.

Problem came Foneyam refused to change the installment value, they even refused to refund me the extra R200 on my deposit, they told me that they have nothing to do with this and I must sort it out with the store.

Foneyam just said I must go to the store and tell them that they need to give you the correct model, but when the store calls Foneyam they are told that they need to make a plan because they are the ones that made the mistake.

Faneyam once they have your money in their pockets, they do not care about you anymore. Now I have to pay more for a cheap phone just because Foneyam refused to correct the error even before the phone was opened from the box.

The store also cannot assist me in anyway as they do not have control over the system .