Regarding a write up
So I had called in to my workplace 30 mins before my shift start due to my babysitter had called out on last mins. I had told one of the manager on that shift of what happened to my situation, and that manager says it was ok he understand. Now 2 weeks later the main boss had issued me a write up which the manager on that shift stated that he’s was ok with it. How do I go from here?

So I had called in to my workplace 30 mins before my shift start due to my babysitter had called out on last mins. I had told one of the manager on that shift of what happened to my situation, and that manager says it was ok he understand. Now 2 weeks later the main boss had issued me a write up which the manager on that shift stated that he’s was ok with it. How do I go from here?