What happened? And can't you open a new account?
What happened is that they implemented a security feature where you need to click on a link sent to your email after logging in.
However, the problem is that I deleted my gmail account due to all the data mining a few months before that and forgot to change it to a new email at GOG.
I changed it everywhere I could think of but simply forgot I used it at GoG too.
So I was unable to access my GOG account.
When I contacted their support in order for them to change my email, they asked me 5 hilarious security questions.
I have to answer correctly ALL of them in order for them to help me.
Some of these are impossible to answer because the info was in a gmail account I deleted.
a) The last 4 digits of a credit card that I used to make a purchase on their site,
b) The PayPal Transaction ID assigned to a purchase made on their site,
c) A key which I redeemed on their service,
d) Account's creation date (the year will be enough),
e) A list of few games I have in my library.