Vivon Vollmar

I have inactive for the last few months perhaps even 4 to 6 months but when I logged in for the Secondlife 11 year anniversary I see the I have been paying money from 50 to all the way 300 lindens in multiple transactions for the last few months. Then when I checked my account Linden history I see a huge portion of my history is missing and I believe I should have had atleast 7340 lindens instead of the 5300 lindens I have now. This is highly unusual. Please someone help!!!!