Day light ******* at BetterSure Insurance

I had a claim for a burst gyser which then resulted in water damage (My ceiling was damaged). Naturally there is an excess fee, which I paid and had no problem with the first time around when they came to replace my gyser. I was then informed that contractors will come to me next week to fix the ceiling, and to my surprise, I was told I need to pay another excess fee amount, even though it still falls under one claim. I am beyond disappointed in this and the fact that this was communicated on the day when they came to fix the ceiling and not prior, when I was putting in the initial claim. I have actually reached a point where I am seeking other quotes to move to a different insurer because it's ridiculous, considering how much money I pay monthly. How am I paying 2 excess amounts for one claim?? I need someone to call me and explain this to me, by showing me where it's stated on my insurance papers.