Victoria Tile &Granite

I contacted Victoria Tile & Granite to do the tile in my kitchen. I had a 3 bids and he came in a little lower and seemed decent. Everything was going good at the start other than small things like them parking on my grass (I was seeding it so all the grass was not rooted well), using my garden hose and leaving the water on causing puddles and spilling white powder stuff all over my driveway but the guys were nice and were doing a good job. He asked for more money three times at the end of the job! 1. He wanted to use a cheaper grout. The kind I wanted was harder to put in so he wanted another $300.00. ok not a big deal only $300 2. He decided he wanted another $150 for putting the grout in. (The job is completed never mentioned more money possibilities while working) 3. I told him I would provide the tile from the beginning. He knew what kind and even saw what I had during the estimate. Again after being done he wanted another $400.00 because I didn't provide the hardi backer? That was never agreed upon??? Why would I get the hardi backer? At the end of the job he was asking for another $950!making him go from average price to the most expensive. I tried to explain that we never agreed to these prices and all these combined made him more expensive than any of the other estimates. If I knew this from the beginning I would not of used him. He would not agree to not charge for the unagreed upon amount. Luckily I am familiar with Washington state laws and know that he can't charge me more than $100 or 10% of the written or verbal agreement unless if it is agreed upon by customer and contractor. So I did the extra 10% and am letting all the review sites know my experience.