Rain takes money from my account without my consent

Rain call centre and finance department cant help me with money they debit from my account rain has been taking additional funds out of my account I've been trying to solve this problem since last month and I cant get any help from anyone in june a debit order or online payment of R1523 was debit from my account I called everyday trying to get help and couldn't and than on the 1st of July again another R330 in the morning and an additional R220 in the afternoon debited from my account I've been calling and calling send emails spoke to about 50 customer care consultants regards to my issue no one gets back to me they have me an email address of a person called sharney I send all the proof of debit orders and still nothing calling them from Monday trying to get my issue solved and nothing called today asking to speak to sharney the person I send my proof of debit orders to and shes either on a call or gone on lunch if anyone know how I can get my refund from rain please let me know cause this is considered *****ing from me cause they only have the consent to debit R530 but now they are taking higher amounts of money out of my account