Vodacom service failure

I am greatly disappointed in the service I received this morning from your agent Thando who refused to give me his surname and his manager Charlie Digelanga. I called in to query the debit order that was sent to be taken off my account. My Debit amount is R359 for my simcard and router package vodacom debited me R430 they told me I have a R100.88 penalty for missing a debit order and they I HAVE NEVER IN MY LIFE been told by them or their multiple consultants who I have dealt with that a debit order penalty will be placed on your account if you miss payment. They have failed to understand my frustration when I stated that if you give someone your banking details to use for a debit order your expect them to advise you of all the potential amounts that can go off I gave vodacom the right to take the amount of R359 off my account NOT R430. THIS IS A PATHETIC PENALTY as I am not being penalised by my bank for the amount and for them for not even notifying me about the difference in my premium. You manager Charlie told me that I cannot speak to anyone higher than him and him and his agent were rude and condescending and they spoke to me like I was an idiot, your manager just dropped the headset while I was talking and walked away. And that speaks to his character as a person not even going to touch on the face that you are in customer service.