When I upgraded my iPad 2 I had not yet set any pass codes in settings. After the IOS 6 upgrade I suddenly had a pass code in the restriction which was turned to on, none of that was done by me but by the upgrade. Then I upgraded to IOS 7 and now I have

After upgrading to IOS 6 there was a pass code on restrictions, which wasn't there before and because I didn't set it I have no way of knowing the combination to open it! Now I upgraded to IOS 7 and now have another pass code set which I did not create. This one is in simple pass code. So now I have 2 pass codes that I did not set. I don't have a clue what the pass code numbers ARE and no way to find out! What can I do to resolve this issue? Please help, thanks!