My Yahoo Password doesn't work
 

I just came back from a month abroad after using many different internet cafes.
Suddenly my yahoo password has been changed and my personal data is now inaccurate for proving who I am (date of birth, zip code, etc). I have this account 7 years, 4 of which have been as a paid subscriber to their enhanced service. I moderate 3 yahoo groups that I founded and am locked out of the controls for two of them. I have contacted yahoo but received a form letter.
Fortunately they have my credit card data on file and if I can get their attention
maybe confirming that data might work to get them to let me in. Meanwhile, who knows what damage some hacker might be causing me? My blocked ID is ljlwpb.