Discovery Health communication breakdown

I'm extremely disappointed and frustrated in the lack of communication I've received following issues I've had accessing my membership info online. I still to this day cannot access my membership info and have spent over R1000.00 on airtime just in the last month trying to have this resolved through the Discovery call centre and IT department.

I've been given reference numbers, and been promised a phone call back and emails on many occasions with no results.

Can someone tell me if there is a physical place I can go to where I can speak to someone regarding the fact that i can't access any of my membership info without spending a small fortune waiting on hold?