Don't give up. Keep harassing the manufacturer. Tell them that your lawyer advised you that there are laws requiring manufactures to supply service manuals for the products they sell.
See right to repair
If all else fails. Send a email to the genze.com with your lawyers name as a Cc: If you don't want to bother a real lawyer? firstname.lastname@example.org
looks like a lawyers email address to me
Do girls answer emails at genze.com? If all else fails and you used to be a boy? Change your sex and start a new email battle with genze.com Assume a new identity email@example.com
can be effective when dealing with women.
Wondering what this is?
https://www.genze.com/faq/title-of-arti ... -scooters/
Does the connected app provide service/diagnostics remotely?
Yes, your Mobile App will run a diagnostic scan of your e-Scooter and report any issues found. It will also indicate the severity of the issue and direct you to call GenZe service if required.