Please delete the existing guest accounts in the device and then block the Settings app through Mobicip app restrictions. Launch Mobicip app > Menu > Settings > Mobicip > App restrictions > find 'Settings' and block it. This should prevent the user from creating a new user account.
Mobicip Support Jun 6, 2017
Re: Bypassing Mobicip
Please delete the existing guest accounts in the device and then block the Settings app through Mobicip app restrictions. Launch Mobicip app > Menu > Settings > Mobicip > App restrictions > find 'Settings' and block it. This should prevent the user from creating a new user account.