Telkom Expecting me to pay for a new phone that does not work

I got a contract phone at Telkom Alexandra, Its applications are not working and the shop is refusing to change it. I specified what apps i needed and they installed them in the shop and all was fine for two weeks then everything stopped working. Telkom does not want to replace the store. When i asked the the branch manager (Mary Lamola) of what is the solution or maybe give me a used phone while they still investigate, she told me that SHE WONT DO THAT AND THE PHONE IS MINE NOW AND I WILL PAY FOR IT LIKE IT OR NOT.

I went to purchase a phone at Telkom Alexandra mall as my old phone is very old (8 years). Was assisted by a guy by the name of Thabang. told him the spec of the phone and the applications that i would need. he provided me a new phone and installed the applications instore and everything was just perfect. everything was warking fine in the store and i took and signed the contract.

Two or three weeks later, I woke up to a surprise as the applications that i needed were blocked. i tried installing them several times and could not. I then took the phone back at the store, where Thabang tried the to install them and also could not, he then called their technician and the appointment was for the following day (Sunday 19 May). the tech lady (Pinkie) showed up, and checked the phone and only installed one application, when she advised that she wont be able to install the others as she knows that it won't work; She advised that she will call Thabang and advise him, and the store will have to change the device and give me a new one for the contract contract i just signed.

I returned the following day ( 20 May) expecting Thabang to replace the devise as Pinkie advised. He advised that he first needs to advise his manager and come back to me. I few days passed and I sent Thanang and his manger emails ( Manager- Pinkie), Pinkie said she is sorry for the inconvenience caused said i should she will come back to me, she gave her cell number to call should i need an update.

after 73 hours I tried calling, called several times and she did not answer. I called Telkom's call center number, the lady who assisted me advised that the shop should have changed the device without all this up and down and if they did not want to they could have simply app**** a process called CPA, allowing the contract to be cancelled and the interest waivered then give me a new contract with a new devise, however Mary the Branch manager is not interested in that and will not do it. she did not answer the call when the contact center tried calling her while I was placed on hold.

I am stuck with a phone i cant install applications on, for any installation or upgrade of any application, Telkom will have to get a technician for me and depending on where the tech is i will have to travel to the area at my cost. will all this Telkom will expect me to honor the contract while they are in bridge of the contract. all they want is money and dont care if the customer is getting the service he requested or not.