Hi Aulus
I'm afraid I was in the same position as you - no response, even though I enclosed an SAE. I even sent a form giving them option to send it back saying not interested.
It was my second attempt, which I explained (I wasn't 100% convinced I'd got the correct address at first), saying I didin't know if they'd received the first letter, but if they weren't interested then I would understand, but knowing that they had actually received the letter, I could 'cross them off' so to speak.
Never mind. As previously said on this thread, it wouldn't put me off trying again.
EeyoreBlue