Bad service from Telkom

If I could give Telkom zero stars I would, From December 2020 I have been struggling to get any assistance from Telkom as a result of my ignored requests they have blocked my numbers and router despite my account being paid for . Around the 3rd week of December I returned a phone that did not meet my needs as requested from a sales consultant. One would assume when I returned the incorrect product I would not have to pay for something not used. My contract was due for an upgrade and I requested a duel sim card cell phone but was sent the incorrect phone which I returned but still getting billed for it after numerous emails to Jaffer, Portia, Nyawon and Karen Telkom has not bothered to sort out this issue.