Let me tell you a story: I want to merge two accounts. I proceeded as explained in How can one link / merge / combine / associate two accounts / users? (Anonymous / unregistered / cookie, or OpenID / registered).
I never received the second confirmation email. I then filled out the "contact us" form with "other" as the subject, as we are supposed to do in this case, and submitted it.
As I received the first mail on my vanilla Gmail mail and as the second one was supposed to arrived on a non-vanilla mail (a facade mail furnished by a former school of mine, and only redirecting mails to a chosen address), I changed this non-vanilla mail in the second account to another Gmail address, and proceeded again as explained in the aforementioned link.
Again, I never received the second confirmation email. Then I filled out the "contact us" again, as we are supposed to do in this case, and when I submitted, I received a "We have detected too many requests from this IP, try tomorrow" error (or something like that).
It is frustrating. Why did this happen and how should I proceed?
Small - frustrating - update (while not answer from the support) :
Of course, the second mail got the same irratating email. While still no answer from support. Thx.