I DON'T OWE RAIN ANY CENT

I feel harassed by rain agents, I was using rain and I have been calling them and sending them messages letting them know that their network isn't working, they told me their 'friendly consultant' will contact me, I was patient with them for 2 months and kept on reminding them that I'm still waiting for their consultant to contact me. I have been using data I bought while paying for rain. I stopped paying now they can't stop calling me to tell me that I owe them I don't know what I owe cause we didn't have a contract, I've never missed a payment with rain I paid from the first day of purchase till the last but they're busy calling me like I owe them.