RCS customer service poor

The service offered by RCS is extremely poor. Its like there is no sense of urgency or care in resolving issues that are logged. I have emailed three times already with an account query because my monthly statement is incorrect but no one has helped me. RCS is very efficient in trying to get you to use their services but then they do not resolve problems you may have with any of the same determination. I don't have time to sit on the phone all day to sort out issues so one would think that RCS would be able to help me electronically but instead they take days to get back to me and then when I respond with the requested info, they do not reply back. Its almost as if they want me to pay the incorrect amount on my account so that they can continue to charge me incorrectly.