If when attempting to login to your account you get an error message that says "Oops! There was an issue with your MV Account. Please contact MV Support for further assistance at email@example.com. Thank you!", it could be occurring for several different reasons, for example too many failed login attempts.
No matter the reason, in these cases you would be best served to reach out to us at firstname.lastname@example.org using the email attached to your MV account letting us know you encountered this issue and we should be able to assist you further in gaining access to your account. If you no longer have access to that email, be sure to let us know your username in your request and we'll let you know what we need on our end to verify you as the account owner.