What is the problem with that, would you tell me?
With what sorry?
I mean what is the problem if somebody fills up the cart and does not check out?
Ahh ok - it's just that someone has been doing chargebacks etc, also some abusive messages. Would like to see if it's the same person filling up carts.
try this it looks useful http://www.presto-changeo.com/prestashop-free-modules/44-order-ip-log.html