Very poor and unacceptable service from Telkom

I phone Telkom on the 10th Feb to upgrade my wifi.I was told I must first cancel the wifi that I have with them before I can apply for the upgrade,which I did.They told me I must wait 5 working days for a technician to call me,which never happened. When I call on the 16th Feb to do a follow up,I was told that my order was canceled, without giving me a reason. I app**** again for the new upgrade on the 17th Feb,My wifi is off since the 10th till today,I was already invoiced for the whole month of February for a wifi that I didn't use. I had to buy data that cost me more then a R1000.I have send emails to Telkom customer care,and still didn't get any help,I am very disappointed and frustrated for the service that I am receiving from a big company like Telkom