I have an iphone but very much use it as just a phone!
If you've ever downloaded an app from the Apple Store, you would have needed an Apple ID to sign in.
This could be somewhat innacurate and I hope someone else chimes in if it is. The ID gives access to iCloud - for file storage & backups. I have turned mine off but unless you've purposely done this, you probably have access to icloud and your phone may very well have backed itself up automatically.
Try going intto settings, scroll down to just before 'Apps'; there is a section with GameCentre, iCloud & Wallet. Have a look in icloud and see if you can find the most recent backup.
Strangely, despite being turned off, my iphone apparently backed itself up yesterday, prompted by an OS update. Have a poke around in there, you might find something worthwhile. 
Edit history
Recommendations
0 members have recommended this reply (displayed in chronological order):
= new reply since forum marked as read