Hey Slosshy! Your Oculus Quest 2 can only be paired to one mobile device at a time, which is most likely the cause of the lack of code.
Hey there bud. We understand you would like your phone to be unpaired from your Quest 2 so a family member can pair their phone. Here are some troubleshooting steps for you and your family member to try:
Please let us know if you need any further assistance, or if any of these steps work for you. 😊👌