Hi, LouisAnnGemini!
Thanks for reaching out to Microsoft Community and posting your inquiry.
Please go to https://onedrive.live.com/RecoveryKey to see if you can find any BitLocker recovery key. If you don't see anything in there, the account you're signed into the website is not the one that was used during the initial set up of the device.
If you know the login or have other Microsoft Accounts that you believe was the one used to configure the device, please use it to sign in on the websites you accessed and the one I shared above.
If this is a device in a workplace and was set up by an IT admin, please reach out to them.
If you still cannot find the BitLocker key using all the accounts you tried, you will have to reset the device.
See https://support.microsoft.com/surfacerecoveryimage how to do the reset on your Surface Go.
If this answers your question, please let our Community know by marking this post as an answer. Otherwise, don't hesitate to respond to this thread if there’s anything else that needs to be addressed.
Kind regards,
Janette_Z