After two and half months of not being able to use my Yahoo advertising account, the problem was fixed. When I set up this account I was double charge by paypal when I added funds. When I contacted Yahoo they blamed paypal and then paypal blamed Yahoo. Since the problem occurred the account was frozen when I filed a complaint through paypal.  Then Yahoo stopped work for me as they did not like my charge back. After several phone calls and emails, they asked my for a fax to authorize using paypal again. A week ago I sent in the fax, and my account never changed status. After a week of waiting I sent a message to support. It turns out they found the fax today and the account is now working. Now I can get back to promoting and making money with PPC.