****ed off with rain

Each time I call or email rain I only get a reference number but no one gets back to you. I bought their 5g router at the end of October for which I paid the amount of R625.00. I only received the router in November but at the end of November my service was cut off and so I quarried this and was told it was a mistake on their side and that my January bill would be paid as I have a credit of R625.00 only to find out that they cut my service stating that I still owe them R23.81. when I call no one picks up and the only thing rain gives you is a whole lot of false promises and references. I just feel like cancelling with them. Once they get a sale they don't give a **** about you