HOW NOT TO TREAT LOYAL CUSTOMERS

Dear Vodacom I have been a loyal customer for the last 5 years and pay my debit order monthly - I have a RED advantage account and without fail my debit order comes off for my contract. The last month I have been billed 3 x more than my usual amount and my current account for Nov is sitting at twice the normal monthly rate. I have the Vodacom app and am tech savvy, every time I receive a SMS that I have run out of data I purchase a data bundle immediately (And never run into this issue). So naturally I queried the account with the call center to only be reprimanded and treated condescendingly by your call agent. I had to escalate to a manager to rather speak to me. The issue then was that I have to wait 7 days before I get a response/revert on the matter.... Would you wait 7 days before I need to pay you on my monthly debit order? I am not one to vent and actually use these platforms, as I usually like to resolve things face to face and get a solution. Unfortunately I have such bitter taste in my mouth that I would actually like to deal with someone that makes decisions and can resolve swiftly. If not then I will need to change my provider out of principle