Bad service

I have sim card problem since the 25 of February, I called on that same day I was told my query has been escalated till today no help. I have called, emailed, sent FB dm still no help yet you got a nerve to send email requiring payment and telling me about suspension, honestly I won't pay for tye service that I'm not using. Every second or 3rd month there will be no network connection. On tye email you are telling me about balance accumulating interest...isn't this service month to month😡😡