I too had a problem the last time I ordered a cd (Netzer), getting my credit card authorised. Previously, I had ordered 3 or 4 cds and each time had no problem getting the credit card authorised. This time it was refused three times, yet I too got an email saying my order was accepted. Out of interest, I phoned Barclaycard and was told the transaction had been logged 3 times!!! I wrote to Tiroler Landesmuseum ( I speak German) and received a very nice email back saying that there was only one order and I would be charged just once, which was what eventually happened, with Barclaycard waiving the other two entries. As other members have remarked - very quirky! I hope the problem is rectified the next time I order!
Cheers
Dennis