Hi there, do you want to redo what is there or take it off and do something different? If you want to do something different, what is the style you have in that bathroom?
Here is an article that might help and inspire you - https://freshome.com/kitchen-backsplash-redo/
This may help: https://www.thisoldhouse.com/how-to/how-to-replace-tile-backsplash
What is rollup? Who do I ask?