I have made it past the SMS text message part. Now it keeps asking over and over again for my pain and I answer it and do the captcha and then it Loops back to the same page and doing it for almost an hour now. In USA here.
I'm going thru the same thing.
I don't know why they put the pin stuff.
I won't log in again at this site after taking my coin out and I'm sure most of people won't either.
What worked for me was putting captchia in before pin. I was stuck there for ages