Hi n2history
I understand that you are having trouble reaching out to support about the promotional offer where you buy a Surface Pro through Microsoft.com website, you'll get the Sony WH-1000XM6
Please kindly check your junk mail, inbox and spam folders from ******@notice.microsoft.com once again for the voucher
Please also note that the headphones are while supplies last - availability is limited and the redemption and fulfillment are owned by Sony, not Microsoft. With that said, for any questions about redemption status, delivery, or issues with the headphones, you’ll need to contact Sony Customer Support at https://electronics.sony.com/microsoft
Disclaimer: This is a non-Microsoft website. The page appears to be providing accurate and safe information. Watch out for ads on the site that may advertise products frequently classified as PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.
Thank you for your understanding