I need proof of purchase of my original iPhone

So I had an iPhone 5 bought for me back in 2012 when it was released and I immediately purchased Protect My Bubble insurance for it. Soon or later the camera started playing up so I took it to Apple and they replaced the entire phone within warranty. Now my second phone has broken and it's out of warranty, therefore I need to claim off of my insurance to get it replaced. However they want proof of purchase, in order to get this I need the IMEI number of my original iPhone as well as proof of replacement. Is this something Apple would be able to provide me?