spoken to my partner who works for knowhow.
get the store to book it with fuji for repair, it won't cost anything to send. write a statement of how you were using it, where etc etc and get them to send it with the camera inc your contact details.
normally manufacture will email the store with pre paid labels or send a courier.
however if the manufacturer disagrees with your claims of correct usage, there may be a charge to get it back repaired or unrepaired.
the store can pay the charge but they wont want to as it comes off the management bonus (which is from the profits of the store).
either way it wont cost the store or you anything to send it off. you may have a fight on your hands if fuji's reapir team sends back a report saying it was misused or neglected. you can ask the store to escalate this matter to something called 'save our customers' by email.
apparently this department is for sorting out such matters that have come to an impasse with store/customer/repair agent.
in the mean time, scour the net and see if theres anything reported on forums such as this with complaints about the camera already. keep these as evidence.