you're not the only one, use following to search & see many reports going back over a year ?
(there are many fun things i would do if recieving those calls).
https://www.google.com/?gws_rd=ssl#q=855-692-3151
one of the Comcast Reps could probably check your old account, to verify there is no unreturned equip issue.
don't put the acct# here, send in priviate if a Comcast Rep asks. (their forum names are in red)
