Telkom Incompetency and unprofessional business service

I opened a Telkom contract. When signing up the information loaded on my profile was totally wrong my name was loaded as Thembi my address, banking details, cell phone number etc. were all loaded incorrectly on Telkoms side. Hence the debit order not being processed. When calling Telkom they could not verify my details and would not assist as I could not verify my address etc. Obviously due to their incompetence I had to visit a store to get my details updated. Needless to say I am still Thembi. Not only does this contravene the POPI act but has caused me unnecessary stress. I have emailed them and to date have had no reply. How do I get someone at Telkom to answer my email and assist me with my account. For an organization as big a Telkom I would have expected a higher level of competency on their side.