TELKOM IS BAD

Good day, on the 24th of January 2019 I have app**** for an upgrade on my current contract at telkom. I was approved by informing me on a sms. On the 7th of February 2019 I received my account and I owed them a huge amount according to the bill. I phoned them only to discover that they charged me for the products that was suppose to come with the upgrade for free. Ref nr ********** 1. The January deal was you pay R807 per month then you get new router, wifi extender, new router and 10 mpbs speed line. Now today I phone telkom again according to them they do the faster line by pressing a button on their side... Then I asked but where is my new router.... Eish mum phone 10213....i don't know. Now I ask you they want me to pay my bill of r2700.... I phoned the 7th to prevent this from happening... I still did not get my router... Or my account fixed!!!!! What must I do to get assisted. Telkom I was warned not to use you!!!