Hacked Microsoft account - Need recovery of OEM Office licence and account access

Hello,

My Microsoft account was hacked, and the hacker changed the recovery information, removed my phone number, and I lost access to the account completely.

I already contacted Microsoft Support and received service request emails regarding the investigation of my account. I also provided ownership information requested by support.

This Microsoft account was linked with:

• My windows laptop
• Microsoft Office that came preinstalled with my Lenovo laptop (OEM licence)
• Xbox/Game Pass services
• Important personal services and files

I do NOT want to create a completely new setup if recovery is still possible. I want guidance regarding:

1. Whether my Microsoft account can still be recovered or escalated further
2. Whether the OEM Office licence can be re-associated with a new Microsoft account on the SAME device if account recovery fails
3. What official recovery or escalation options are still available

I still have:

• My Lenovo laptop
• Purchase invoice/bill
• Previous account information
• Recovery case/service request details
• Old linked phone number information

I would appreciate any official guidance regarding recovery or licence reassociation.

Thank you.