Originally Posted by
lento
Thank you for your suggestion. I tried 3 different browsers but same result. However, when I checked my email, there was one email with pin and it says the member code will come in next few days. I will just wait..
Yep, you got the "error in service" message because you already had an account open with the same email address.
I had the same issue, until I realised that I had actually already signed up a long-long time ago but had forgotten about it as I've never flown Alitalia and use another FFP for my SkyTeam flights.