This error can only occur when you use Authy for your QUOINEX account's 2FA setting. Google Authenticator is based on your device and does not care about phone code or Country of Residence.
This error occurs when your Country of Residence is not the same as the country of your phone number. System automatically sets up your phone code according to your Country of Residence, so if the countries are not one and the same, there will be two country codes in one same phone number.
- Country of residence: Singapore
- Phone number: +81-********* (Japan)
- Phone number as perceived by system: +65-81********* (wrong number)
In this case, please contact firstname.lastname@example.org to reset your phone number back to the correct format. Support team may ask you to provide a recent proof of address that reflect the correct country of residence.