Bad Service

I have a problem with Telkom, my sister took a contract phone for me on the 27 of November 2021, this year August i experienced a network problem I couldn't make calls, received calls and use internet. Tried to contact their call center they gave me some internet settings but there was no difference.

I decided to go to the store in Canal walk they gave IT but didn't help me, I asked them to book my phone for repairs they said I should take it to Huawei store they are very fast and I took it they booked it on.

After 10 days Huawei store phoned me telling me that I must take my phone because they are busy with renovation in their store, fine I took it and I gave the lady called Karen Mavuya at Telkom to book it for repairs and it was the 27th of September.. She said it's gonna take 21working days.

Yesterday on the 17th of October Karen Mafuya sent me an email saying "she is going to re-book my phone because of insurance " it means this lady didn't book my phone, if they can't fix the phone why they can't give me another phone? Because I'm paying insurance and phone.

Please assist what should I do? Beacause I'm sick and tired of paying phone that is not working.. Thank you