Lying about what is included in the contract

I took a cellphone contract with telkom, which after that they were going to give me a free tablet from August 2024, they have been sending me from pillar to post, the tablet issue or a free tablet was a lie because I have been spending money going to telkom since last year September where they said the tablets comes every Monday which is not the truth because I never got mine since last year September 2024, there is no one who is willing to help me at telkom, please help I also want to return their phone, how do I do that please? Because the contract was a lie MM Mafune