Bundle discount never added to account

I am writing to formally request a resolution regarding my Xfinity Mobile and Internet services. When I signed up for Xfinity Mobile services, I was explicitly informed by your representative that I would receive a $40 discount on my monthly internet service as part of the bundle. This discount was the primary reason I agreed to add the mobile service. However, the promised discount has not been applied to my account. Upon discovering the issue, I reached out to Xfinity support to address this matter. Unfortunately, I was informed that the return window for the phones had expired, and that I am no longer eligible to cancel the mobile service or return the devices. This decision seems unjust, as the agreement that led me to accept Xfinity Mobile services was not honored.  I believe this was a deceptive tactic to get me to sign up for mobile services under false pretenses, which feels like a scam. This situation has caused me unnecessary financial and emotional stress, and I am deeply dissatisfied with Xfinity’s handling of this matter.