I received this reply to my question: "If you didn't save the game progress through an account then you have completely lost your game progress.
However, if you want to start again from the correct level, you must first connect the game through a Kingdom or Facebook account. Since boosters are stored locally on the device, they can be damaged for a variety of reasons.
Please email Player Support so they can restore the levels manually on your account.
Go to the game's Start Menu, then Settings - Help Center - My Game Progress - Contact us and send them an email. Don't forget to mention what level you were on!
It's important that you choose "Problems with my game" as your topic and "Game didn't save" as your subtopic. "
There is no 'help center' when I open candy crush. I play the game and save it in Facebook. The settings only have volume control and some hints on how to play... there is no link to 'My Game Progress'. and I don't have an email address to send my request to. Also, the game only sets me back six levels, it saves all my progress until then and I am definitely signed into Facebook when I am playing. Please send me the email address to mail my request to.
Thank you.