Irregular debit order

I have been trying to get through to your telephone line the entire day, from 8am, till now, 2pm, with no success. It seems this is the only way to receive feedback from Momentum. <br> <br> I notice irregular payments that have been going off my account on the 22nd of every month as well as the 1st.<br> There is suddenly a debit order of R564 that you are deducting that I do not know of. When I signed the contract, I agreed to paying a monthly fee of R169. Why are you deducting twice a month amounts that I do not know of?<br> <br> Kindly advise.