Thank you for replying.  I have been able to get Verizon to apply credits to my bill when I call each month.  They agree that I should be getting the promo credit and that there is a "problem" but they also assure me every month that it will be fixed the following month.  Yet, it never is.  When I look at my "estimate" of my next bill, it currently shows the higher amount due with no credit for the trade-in promotion.  The credits previously given after my calls to Customer Service have been listed under "one time charge" and not "monthly" on my statements.  Is there anyone out there that receives a credit each month for their trade in and, if so, where does it show on your bill -- as a "one time charge" or as a "monthly" charge?  Also, any hope the "estimated" next bill will be corrected when it becomes an "actual" bill?  Truly appreciate any assistance.