Bad debit systems and Unproffesional Managers on site

It is really frustrating that after 4 years of using Rain for the past 7 months i have to be calling rain on a monthly basis to ask them to fix their systems due to me being over charged on a monthly basis and being promised to be reimbursed my over charged amounts which dont happen everytime.

i need to be dealing with *********** Team leaders that dont know how to solve issues but to quickly point fingers at me the customer. My account gets charged for rejected debit orders and no one apologies for that and pay my expenses. I have been calling using my airtime monthly for same issues and i have no choice but to now express this to everyone about the BAD SERVICE that im receiving from RAIN.

Can my issue be resolved and some type of compansation is required as i cannot be mistreated like this while im a fair paying customer, failure to do so i will appreciate if my account gets cancelled and i move to other competitors.