dismemberment? Is that where your membership is cancelled?
On a serious note, Vulch, my wife Mel has worked for a bank since the dawn of time and she says that your next move should be to go into your nearest branch and fill out a Disputed Transaction Form. Your bank can't act upon anything until they have written documentation to support your request.
Upon receiving this, your bank has ways and means of tracing and refunding your money.
Your bank has a fraud dept, who have extensive experience in this field.
Do you have internet banking with your financial institution? If so, you can contact them via the web. If not, go on your bank's website anyway, there will be a link for for lost or stolen cards, there should be a service 24/7, 365 days per year.
Mel reckons you will get your money back, but it's a pity that these hurdles have to take up so much time and effort.
I phoned my internet bank this morning. The Fraud department took all the details then, at my request, blocked my card. The lady then tried to order a new card for me but couldn't, because she'd blocked my card. She said I would 'probably be refunded in the next 5 or 6 weeks' but whether the 'probably' refered to the refund or the '5 or 6 weeks' remains unclear. She then suggested I go to my nearest branch of Abbey, with proof of identity, and ask for a new card. At no time did she, or my local branch, ask me to fill in any form.