False advertising and pathetic service

Telkom's service is absolutely pathetic. I first went to the Telkom branch in. Chatsworth to upgrade my internet to one of the lockdown deals they have been advertising. The girl was so rude and didn't even allow me into the store. She told me I couldn't get the deal because it's only for new customers but someone will contact me. Until now no one has contacted me and this was a month ago. I then called myself and was told I could get up to 20mps, the deal was only for 4mps and was put through. Two weeks went by and I received nothing. I called just to get told the deal was canceled. If I didn't call I would have known anything!! The reason being that I can't have a 4mps line which is bull**** because I was told I could have 20mps. I can't get the Fibre deal nor the ADSL deal yet it's no fault of my own. Telkom should not advertise these deals if they can't deliver. If they are only for new customers then obviously they don't value the business of existing customers which is pathetic!! They want me to pay R200 extra from the special they are offering to get LTE. Why should I pay this amount when it's no fault of mine that they can't install fiber or a faster line? Absolutely disgusted and disappointed with their service being a customer of over 20 years!! Being treated like my business means nothing to them!! Their false advertising needs to be stopped!!