Incorrect billing without my consent

I am very frustrated and disappointed by rain network. It used to be a reliable network before they introduced the 5G. Of late their customer service is very poor, one deals with the bad network connection and incorrect billing amount with no refund or customer consent. Sent countless emails with no response and the worst part is no contact number to follow up on a submitted complaint.

I am officially over rain because all it seems to care about is collecting money instead of taking client matters or concerns seriously.