My history with Zavvi...
Ordered Punisher PF, they priced him too low by £100. Got cancelled.
IM LSB, Great price and promptly delivered.
MJ Comiquette, Ordered when instock to be told they were actually sourcing stock. They got supplies after a week or so. Bargain price.
Exactly the same with HT 'Workshop'. Come good and found stock after about a week. Double boxed and arrived in great shape.
I know of others who ordered to be told they couldn't fulfill it.
Alot of their stuff is overpriced but some are reasonable and their occasional 10% off helps.