Comcast

Menu
Support XFINITY Internet If I use more than 5 GB of data in a month, will I receive the $5.00 credit?

Introduction

This information only applies to Economy Plus customers in Huntsville and Mobile, Alabama; Fresno, California; Atlanta, Augusta and Savannah, Georgia; Central Kentucky; Maine; Jackson, Mississippi; Knoxville and Memphis, Tennessee; and Charleston, South Carolina who choose to participate in the Flexible-Data Option.
 
Note: This information does not apply to customers in Nashville, Tennessee or Tucson, Arizona.

No, if you use more than the 5 GB, then you would not be eligible for the $5.00 credit.  You would also be charged $1.00 per gigabyte above 5 GB.

Find this article at:

http://customer.comcast.com/help-and-support/internet/exp-fdo-exceed-allowance-credit/