This issue typically occurs when trying to log into your Cardholder Account from a company device or while connected to the company network, and your company IT Security blocks access to the website allgo.getmybalance.com.
An effective workaround his to try logging in from a personal device not connected to the company network (and possibly also using an incognito browser window).
If this does not resolve the problem, please contact your company IT Support to get allgo.getmybalance.com whitelisted so access won’t be blocked.
Another reason for this error is if you are trying to access your Cardholder Account from a blocked country – click here for more details.