Reconciling Merchant services transactions against Tess reports

Hello,

when identifying variances between bank deposit listed in the merchant service web and Tess posting reports what is the best way to search for those transaction in Tess. using the last 4 of the cc from merchant services results in numerous names. We have also tries using the EPS transaction summary report. Any other ideas to search for a transaction using last 4 of credit card, amount etc which is the only info in the merchant services site? 

Best,

Marco