Unauthorized deduction and no answer on call center

I was under another debt review service that did not pay as they were supposed to ... after changing my new reviev company sent Old mutual a proposal... meanwhile old mutual sent me a sms that they expect payment on the full amount and on the 30th they just deducted the full amount! Today I called in to old mutual's debt review department and as I am writing this review it has been 40 min + no anwer yet! This is very unprofessional and unfair!