Naghdy

I had to refresh my computer and re-install my Eset unfortunately my old email account got blocked and I can't recover my username and password I had written down my username and password on a paper when I first installed Eset (april 2014) , but it isn't working Is any solution for this problem aside contacting the eset office in san diego by phone (I live in brasil, its complicated to call them from here)

is it the only solution?