it is true..you do not need a receipt to take a faulty product back..you need a proof of purchase, which is not necessarily the same thing.
was it purchased by credit card or maestro, if so there will be a record of the purchase on the relevant statement.
was someone else with you when you purchased it...if so, that person is your proof of purchase.
in order to expedite (not sure of spelling!) your product exchange go to the shop at a busy time and speak in a very loud voice. this tactic has worked for me many a time, if the shop assistant/manager ummms and aaaahs make sure you point out that you have many friends who often use that shop and you will lose no time in telling them of your experience.
if all that fails find out the name of the head honcho and write a letter to him/her stating your points.
good luck!



