Bajaj Auto — Vehicle registered mobile no changed without my consent

Today I got the message
Dear Sir, Your mobile No. is changed from 70(hidden) to [protected] for bike No. AS01FD2589. In case request is not raised by you, call Bajaj helpdesk [protected]. Bajaj Auto limited
I have not requested for any change. They have placed a bike service request also without my consent. They are doing something fraud. Please resolve the issue and take appropriate action agaist them