What do I have to do to get you to take my money?

I have been trying since the beginning of this month to resolve a n issue relating to payment. My medical aid has even been suspended due to something that isnt my fault. After payment attempts being returned to me, I requested a debit order again. This has not been done as promised. AFTER BEING PLACED ON HOLD FOR TWENTY MINUTES WHILST CALLING FROM MY CELLPHONE TO RESOLVE AN ISSUE THAT SHOULD HAVE BEEN RESOLVED ALREADY, I DEMANDED THEY CALL ME BACK. This still hasn't happened. I am seriously considering cancelling my membership as I have done nothing to deserve this treatment. On the contrary, I have done everything in my power to ensure payment and this is how Im treated.