Hi Catherine Briceño Vela,
Welcome to Microsoft Q&A forum. I'm happy to help.
If you sign in your Windows with online Microsoft account, BitLocker Recovery Code often saved on the Microsoft account you used to setup your computer. You may visit BitLocker recovery keys to check your devices and recovery keys on them. Please sign in with every possible account you have.
If you use your computer with Local account / or you manually setup BitLocker later with another drive etc., so BitLocker Recovery Code is not saved on your Microsoft account. In this case, you have to find the BitLocker Recovery Code that you saved on your computer, OneDrive, E-mail, etc.
If you can't find it at all or it was never backed up, unfortunately no one can send it to you, not even Microsoft. BitLocker encryption is designed so that only you control the keys for security and privacy.
For more information, please visit official Microsoft Find your BitLocker recovery key.
I hope that above information is helpful to you, and you can find the recovery code.
If you have further questions, please feel free to let me know.
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