Acct # .........on 6-17-16 I requested an upgrade of my plan which required an upgraded modem. I received, installed and activated the new modem. I also returned the old modem over a week ago. Yesterday 7-7-16 a message was left on my phone that I was being fined $150 for not returning the modem and today 7-8-16 I've no internet service and I received an email to activate my new modem. Something is wrong. I've returned the old modem a week ago well within the 45 days allotted for return and I shouldn't have to reactivate my service and why don't I have service today?