Can you help me?Please...

I have received this e-mail from alertpay. I'm italian and I don't undestand very well english.These people had to money for exchange Liberty reserve money...but They have done a fraudolent transaction with credit card....How can I complaint all???Alertpay told me that can't help me!!!!Incredible!!!!

"Our security center has informed us that you received fraudulent funds.As a result, we have reversed the corresponding payment(s) from your AlertPay account.Details of the payment(s) in question are as follows:

Email: [email protected]
Amount(s): xxxx
Reference number(s): 6FBF6-1394D-416B8

Email: [email protected]
Amount(s): xxxx
Reference number(s): A293C-A966D-6F3AFx

Email: [email protected]
Amount(s): xxxx
Reference number(s): E690E-5285E-1A453

Email: [email protected]
Amount(s): xxxx
Reference number(s): EBB80-54DA2-56B1B"

Be carefull don't accept transaction from them on alertpay!