ABM account is locked, as an MDM vendor how to release devices?

The customer's ABM account has been locked,i can't get token with DEP Server Token.Is there any ways to release device from ABM with some api or softwares.

I hope no remote management page during the activation process settings after i restore factory settings.

Thanks in advance.

ABM account is locked, as an MDM vendor how to release devices?
 
 
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