okay so im going through clearing and i have an offer which they have accepted me for; they have my clearing passport and have sent em copies of my results (they wanted) - it hasnt yet appeared on UCAS will next communication with my uni be them sending me confirmation letter (is it as12)?
I assume they'll send you your offer pack and notify UCAS of their decision. There's no need to reply to the AS12 letter even if it's sent.
You don't get an AS12 if you're going through Clearing. It's slightly different