I received my September 2018 bill. I was charged 39.99 for a replacement modem. I have the rental plan, that means replacement is free. Can't speak with anyone because the lines are always busy. Previously, I spoke with an off shore call center about the replacement modem. I could understand them. I believe the call center made the error. I only paid the @62.91. They show a balance of $46 due now and a $106 charge for September 25. Please help. I was with verizon since it was called c@p.