Get an iPhone 14 on us! - Promotion Monthly Credits

Hi Everyone, 

I'm having an issue here with Customer Service not finding my promotion on an order from September/October. I'm referring to the one provided to select accounts through Xfinity Rewards that provided a discount of $829 through 24 monthly payments. This is clear as day on the Order identifying the device cost and the discount, both identified "/mo for 24 months" as shown below. For my iPhone Pro the device payment should be $7.08 per month. Really nice promotion by the way. The problem is, the subsequent bill after paying initial taxes and my first device payment did not have the Promotional Credit.

I've reached out to support via chat, via phone. I was initially told the credit was supposed to only apply to the first bill. My account was then changed so that it aligned with the $400 promotion, not at my request or authorization!! The next agent kept requesting the promotional code. As if I saved the code that was used on the order from September. The last agent told me a Case was made, and sent to the Rewards team.

Needless to say, hours spent getting this fixed so far has gone nowhere. I met the promotional criteria by activating within the allotted time and transferring my number from another provider. This is clearly an error with the Billing System. I truly don't appreciate the Customer Support team flat out lying to me in a scramble. Asking for escalation hasn't made headway yet. Does anyone have any input I can share with their Customer Support to get this expeditiously resolved?  

Per the Order:

$7.08

Picture below edited - Name, Phone Number, Device IMEI removed for privacy: