Dazzle and MSH,
I have to say tht in my case, SOLVIT were really good, on saying that, I was aware of a case the same as mine (here in tunisia) where SOLVIT did not respond etc, and when i contacted them, I was quite stern, and stated what I wanted.
I know people have not even had their reference numbers until "week 9" of 10, I stated that It was unacceptable and wanted mine immediately!
within 1 week, Solvit were on to the Italian solvit, and I had my reference number, and with that, I was able to make a lot of progress in driving people crazy myself, it seemed to have an effect when I was able to quote my SOLVIT reference, as in they knew they were in trouble by then, and that my stating that I had contacted solvit, and would see it through to infringement proceedings and hopefully a heavy fine for Italy (in my case) DID get results!
I am posting this in the hopes that it might help others.
I do also have to say that I used a Business email address, that is .eu and that might have had something to do with it too