The supplied email address was not valid - problem

Hello. There was a huge problem, for the second day (since last night) I'm trying to change my mail on my new mail. I correctly enter the new address along with @gmail.com . But in the end the site writes to me the same tablet - ' The supplied email address was not valid.' , some friends have tried it - a similar problem. How can it be solved?

(In case there is grammar mistakes/anything else, I apologize, english is not my first language)

Best regards.

We no longer accept Gmail duplicates. An accounts email must be unique to prevent spam creating accounts etc

If you're not aware, Gmail ignores full stops in your email where as we do not. If your Gmail = [email protected] & your Warmane email [email protected] you'd still receive our emails.

You'd need to remove all full stops when attempting to set an accounts email to a different one. If you're certain your email does actually contain full stops as a valid character, you should try logging into your @Gmail with no full stops.

I have a same problem suppose my email is [email protected] and when I try to enter it I cannot be able to change it, it always says The supplied email address was not valid.
even tho I made two different gmail accounts because in this previous reply you said the account must be unique so made another.

Bump. Same problem. Doesn't matter what email address I use. Different Gmail accounts with names not even remotely similar, no full stops, full stops, even other emails besides Gmail which I have since been told wouldn't work anyhow.

I see there was no solution mentioned, which is kinda annoying. I have the same issue as you guessed correctly.