Yes , you just need to phone them, give them the date and rough time, and if you can remember who you spoke to.
They will be pretty reluctant to do this as it takes Hours! and i mean hours to find calls and listen to them, but if you just tell them your circumstances this should push them along a bit.
If you are not the policyholder, then you will probably not be entitled to the information due to data protection laws.
Just give them a call and see what they say, whether you will be successfll or not who knows.