How can I unlock my account without sending code to old number

Hello Kaliah_elianna0928,

We were a bit confused by your post. Are you trying to unlock your Apple Watch passcode or receive a verification code for your Apple ID? Proceed below and see if the following would be helpful, given your issue:

• To unlock the Apple Watch passcode, you'll want to follow these specific steps: Lock or unlock Apple Watch - Apple Support
• In case this is about your verification code on your Apple ID, see these ways to get that code: Get a verification code and sign in with two-factor authentication - Apple Support You could use a trusted device in order to receive the code without using a phone number.

If these steps don't address your issue, please reply back providing more information. The more we can understand about what's going on, the better we can assist.

Take care.