Reaching GGG support

Hi,
Anyone having issues of reaching support via e-mails?
I keep receiving this message from Gmail:

"Message not delivered
There was a problem delivering your message to support@grindinggear.com. See the technical details below.
The response was:
Receive rate too high"

Also here's my question to support, maybe you can help me:

I bought POE 2 early access through Steam, but I used to play on a separate GGG client, in order to keep my stash tabs from POE 1 I binded my account to Steam but apparently I already had an old and unused account binded. So now i have two POE accounts binded to Steam - the old one (which received 300 coins for EA) and my main one (which have my stash tabs but no coins).
Is there a way to transfer coins to my main account ?