Poor Service and Bad Product for Client Needs

I do not know what to do, I logged complaint first it took two weeks to be called and the lady said to me "It is ok I am going to update your uploading speed to 100 and downloading" guess what only downloading speed was done but uploading it is sitting on 7mbps what can I do with such and they refuse to rather change to LTE, what am I supposed to do with this useless to me contract when paying R1100 every month without fail, how can I continue paying for a contract that does not fulfill my needs?

I have had problems with Vodacom Pavillion first day now even call Centre even more messy