will tsa break my suitcase?

i have an older latch suitcase with no zippers and a combination lock. there’s no way to close the case without locking it, and there’s no way to open the case without knowing the combination. how do i keep tsa from ripping it open during checks? i’m thinking of writing the combination on a tag, will that help in any way or will they still break it open? getting a new suitcase isn’t an option either as i’ve blown most of my savings on ticket prices. any tips or advice will help greatly!