Kaiser-Battistone

I just called Kaiser-Battistone to fix my shower handle and they fixed it on same day but they did a bad job. After fixing we were not getting good hot water, but in other bathrooms its fine. It took a while for us to identify that and when we called back them to address the issue, instead of addressing they started asking extra fee for service; this is not acceptable, this very bad customer service. I haven't wrote any review earlier on anyone but this wrong attitude forced me to do this.