$400 iPhone Promotion Not Honored / Months of False Assurances – Anyone Else Dealing With This?

I’m posting here because I’m beyond frustrated and hoping someone from Xfinity can actually help.

In December, I upgraded to an iPhone (17 Pro) in-store specifically because I was told I’d receive a $400 promotional credit. I signed up on the store tablet based on the estimated monthly payment shown and was verbally assured multiple times that the promotion was included.

Months later, I discovered the $400 credit was never actually applied.

What makes this worse:

• I’ve contacted Xfinity multiple times over several months
• Different reps kept telling me the promotion was on my account
• I recently found out it was NOT
• I was never clearly provided written promo terms showing why it wouldn’t apply
• I feel like I was misled at the point of sale

At this point, this feels like either a major billing error or deceptive sales tactics.

I’m asking:

1. Has anyone successfully gotten this fixed?
2. Did you have to go through Reddit mods / executive support / FCC?
3. Is there a direct path to getting the promised credits honored?

I have bills, timelines, and records of repeated conversations where I was told this was being handled.

I just want Xfinity to honor what was promised when I agreed to purchase the phone.

Any advice or official help would be appreciated.