for security reasons all commission IT services will have to implement multi-factor authentication (MFA).
This means that as of 01 November you would need to use your phone (MFA by SMS), your smartphone (EU Login App, available from Google Play and App store) or a security key (Yubikey, Fido2key, U2F, etc).
For more details, please follow this link https://webgate.ec.europa.eu/cas/manuals/EU_Login_Tutorial.pdf .
Dispute resolution bodies
The dispute resolution bodies listed on this site all offer out-of-court settlement procedures. They have all been approved for quality standards relating to fairness, efficiency and accessibility.
Each dispute resolution body has its own rules and procedures. They're usually quicker and cheaper than going to court.