Worst-case

I have been with Rain since its inception and im deeply disappointed in the way i have been treated as a loyal customer. Every month my services get cut off even after paying citing outstanding payment. I have reached out to customer care and the agents that i get in touch with are quick to say i owe them without checking what the issue is. I do not owe anything and i can provide proof of all my payments but my account shows that i owe over R2000 how is that even possible if its a month on month contract?. Im really disgusted with this service and would like Rain to rectify this and STOP cutting off my services as if i have not paid. Im ready to change providers but i cannot change because they say i owe them and that will affect my credit score. Please can you assist me and STOP Rain from trying to rip me off.