Mislead and poor customer service

Contacted Telkom via their website inquiring about a Telkom modem and their service entertainment bolt on. The consultant confirmed for me that if I get a modem for R200 per a month for 5GB and pay the additional R100 for Entertianment Bolt on that I would be able to stream Netflix/Showmax up to 100GB. The modem arrived from the courier on 27 September while I was reading the fine print and I noticed that for LTE that you actually only get up to 10GB streaming on Entertainment Bolt On. I immediately contact Telkom to cancel my contract as I knew I had a 5 day cooling off period and I was promised that the courier would contact me to collect the modem. Since that call I have contacted Telkom 4 times to follow up as I have not had any communication from a courier and I still have the modem and I was informed due to me purchasing it online that I can't return the modem to stores. On 5 October I then received my invoice for the modem and 5GB. I contacted Telkom again and I was promised that they would send me the cancellation forms as the previous consultants that I spoke to at Telkom hadn't cancelled my contract. I have now gone as far as to cancel the service on my login at Telkom and have still not been contacted and I have sent an email to the email address at Help on your website. Should this not be resolved, I will take this further with the ombudsman.