Forwarding details of my failed Bitinstant transaction to Gareth and Yankee as requested.  ZipZap's prompt and professional support has already responded with:


"We are sorry for the delay in processing but you will need to contact BitInstant directly to get it resolved. ZipZap received payment confirmation and sent payment notification to BitInstant. Even though the BitInstant site is unavailable for new orders, they have assured us that payments are being processed."