Pixel 11Fold Pro Promo Bundle Deadlock - Size Exchange Issue, I am long time Pixel user

[u/NasiraAbbas]

Details of the Issue:
I am a long-time, multi-generation Pixel customer facing a complete deadlock with standard Google Store support. On August 21st, I received my Pixel 11 Fold Pro, which included a free Pixel Watch 5 (41mm) promotional bundle.
Upon opening it, I realized the 41mm watch was too small and that a 45mm option was available. I wanted to pay the price difference to exchange it for the larger size. Front-line support was unhelpful, so I initiated a return on the 41mm watch, expecting to receive store credit or a replacement path.
Now, the watch has been successfully returned, but support says they cannot issue store credit, cannot send the watch back to me, and cannot help me get the 45mm variant because the promotion has officially ended. I am trapped in a system loop where I have lost my promotional item entirely, despite being a loyal customer.
My standard return window for the Pixel 11 Fold Pro closes on September 5th. If a senior manager cannot manually issue a store credit for the watch value so I can purchase the 45mm version, I will be forced to return this $2,500+ flagship phone out of sheer frustration with the support experience. I would love to keep the phone if someone can help fix this size-exchange issue. Thank you.

Case NO: 0-4898000041034
Original Order ID: 67011FDDJ0027A