Diamond member promo code for watches

Yes - I ordered 2 iwatch that were too small.  I went on chat and it was recommended to go the the Xfinity store to exchange them.  I spent 2.5 hours during my work day at the store with the agent.  She completed the exchange advised me a ticket was submitted to get the promo code reassigned to the new devices and wait to activate them until I got confirmation of the ticket being closed out of which I did and it said no further action required.  I activated them at that point.  I reviewed by bill and the codes weren’t assignor the new devices.  I made 2-3 calls to the billing department of which I was instructed to do by the store rep for assistance and they were unsuccessful adding the code.  Then I was told to return the 2nd set of watches and get 2 more.  I told them I wasn’t going through that whole process again.  The last rep I talked to said I would have to call in EVERY month to get credits added onto my account.  This is ridiculous that I would have to call in 35 times over the course of the promo to get this credit.  I’m not sure about other customers…I don’t have enough time in my day to get my day to day responsibilities done and to add this task into my schedule is a huge inconvenience.  The code is

KKQ8RZC83RCG2U9XH.  I’m praying you can resolve this issue after spending about 8 hours total trying to get resolution on this problem.  

@XfinityAlyssaA​ [Edited- Personal Identifiable Information]

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