my account is locked

If this is in the iTunes/App Store, see the 3rd link.

If your Apple ID is locked or disabled - Apple Support.       

If you have changed your ID or password, have you followed the steps in this article?

What to do after you change your Apple ID or password - Apple Support.      

If you see a message that says 'Your account has been disabled in the App Store and iTunes' - Apple Support.    

If necessary, contact iTunes Support. See the Apple Support articles below for contact information.   

iTunes Support – world wide 

Apple Support schedule phone call       

See these additional possibilities:

See If you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled  https://support.apple.com/en-us/HT204306, especially the section entitled Remove your passcode. 

If you don't have a computer as mentioned in Remove your passcode, then "borrow one from a friend, or go to an Apple Retail Store or Apple Authorized Service Provider." Of course the last option usually is not available now.

Later the document says: "If you can't update or restore your device using recovery mode, or you can't use recovery mode because of broken or stuck buttons, contact Apple Support. Then follow the steps to set up service for your iPhone, iPad, or iPod touch."

__________

See Turn off Activation Lock https://support.apple.com/en-us/HT201441See this heading If you erased your own device.It says:"If you don't sign out of iCloud before you put your device in recovery mode and restore, it might remain in Activation Lock. That means you need to enter the same Apple ID and password that … was used when … [the device was last set up]. You might need to use: If you forgot your Apple ID  https://support.apple.com/en-us/HT201354; If you forgot your Apple ID password https://support.apple.com/en-us/HT201487; and If you forgot the answers to your Apple ID security questions https://support.apple.com/en-us/HT201485. Post back if you have trouble removing activation lock.