[English] I already received my salary bulletin, but cannot register on Ameli with the social security number

Hello Madame/Sir,
I tried to register on Ameli with the social security number I found on my salary bulletin. However, my 13-digit social security number contains one latin letter, and that is not recognized by the registration page of Ameli.
Besides, I don't have a two-digit code for my social security number either.

I filled one S1106 form and mailed to CPAM through postal service, but received nothing back.
I also tried to call the English line of Ameli which never works..
I would appreciate a lot if you could help me with this or give some advice on who else I can contact.
Thanks in advance for your reply.