Hello,
Thank you for posting in Microsoft Community forum.
Based on the description, I understand your question is related to unlock drive.
Regarding to the ticket cost and refund policy, it is recommended to contact Microsoft hotline for a detailed check.
If the drive is bitlocker encrypted, there will be a bitlocker recovery screen ask for bitlocker recovery password. Generally, we can refer to the following path to find out the BitLocker recovery key, because this is a personal information and will not be collected by Microsoft, so please kindly try to find carefully if the key was saved in below places:
- In your Microsoft account: Sign in to your Microsoft account on another device to find your recovery key: If the device was set up or BitLocker protection was activated by another user, the recovery key may be in that user’s Microsoft account.
- On a printout you saved: Your recovery key may be on a printout that was saved when BitLocker was activated. Look where you keep important papers related to your computer.
- On a USB flash drive: Plug the USB flash drive into your locked PC and follow the instructions. If you saved the key as a text file on the flash drive, use a different computer to read the text file.
- In an Azure Active Directory account: If your device was ever signed in to an organization using a work or school email account, your recovery key may be stored in that organization's Azure AD account associated with your device.
If you are unable to locate a required BitLocker recovery key, I am afraid you cannot access that drive.
Best regards,
Molly