On my credit card bill, I find my Second Life spendings as "LINDEN LAB, 800-9616851 7, USA (amount) USD", and I find the same amounts in my online Account History on http://secondlife.com/account/transactions.php.
But on the credit card bill I also find three withdrawals marked "SECOND LIFE, 1 800 8606994, GREAT BRITAIN AND NOTHERN IRLAND (amount) USD", which I can't find in my Account History.
I might have been to drunk to remember all my spendings

I have mailed [email]billing@secondlife.com[/email] about this, but not gotten any answer except for an automated one. This is quite frustrating, for two reasons: I must, of course, know if the charges are false before I ask VISA to give me my money back.
But more seriously, if these charges are false, that means that somebody knows both my credit card details AND that I am an SL member. That tells me that using credit cards in Second Life is totally unsecure - which would take some of the fun out of it, actually ...
Does anybody know anything about this?