ParetoLogic
Charge for registration not received

My MBNA Visa card account shows the following item

29 jul 1o 30 jul 10 CLKBANK.COM_YNREJJLX 800-390-6035 £26.78

This was a software registration fee for Paretologic, but the software was never registered by them. I claimed a refund, but they said they could not trace the transaction. Can you please chech the transaction details for me.