hey
Its called Request for Access to Personal Claims History Information. Its free of charge. All you have to fill form and send by post. I think it takes 4 weeks to receive.
http://www.forms.ssb.gov.on.ca/mbs/ssb/forms/ssbforms.nsf/GetFileAttach/014-4890-84E~1/$File/4890-84E.pdf
Hope this will help.