Cart Embties for some customers


I’ve had few customers call me and tell me that the cart keep getting emptied and tells them some information is missing. I got the first call couple weeks ago from a customer that wants to place the order over the phone since he was not able to place the order online and then got more calls and the latest was today, I tried to place an order myself as a registered customer and as a guest using different browsers and had no problems. The thing is I’m getting orders going through without a problem daily but I see alot of abandoned carts and I’m wondering if that is the reason.

Today when I was placing the order for the customer the profile was missing the billing and shipping addresses the same as with the customer who called me few weeks ago.

If anyone had similar problem or can direct me to where look I will appreciate it.This is on CS 2.0.14

Thank You