X-wife calls

I just found by accident that Cox phone tools show incoming calls but only for 120 days . It would be great if I found this out sooner . I need more then the 120 days to take to court for the incoming calls of my husbands X-wife that has been calling our home at all hour's and leaving messages and hang ups . For our new restraining order . I called Cox and they are no help and just repeated like a parrot what i read on the website. All i need is a print out of one number , simple request .