Business ProfileforServiceMaster of Colorado Springs

I apparently ran out of space so I'll try to make this short. I think they are running a big insurance scam. They are relying on home owners to be insured and not look at their bills I guess. I was assured my bill would be around ****-2000 dollars and somehow they ended up billing me over 11k. To sum up they worked on the project of a wash and sanitize task due to mouse droppings contaminating the house that I just acquired. This was to be a top to bottom wash and clean. they worked for a total of maybe 24 hours on the project over the course of 4 days starting on July 20th. They did not work the weekend. I provided them a dumpster because they said that to do a sanitize they needed to remove the cabinets and the carpet. Assured me that the whole demo would only use up about ***** of the **** I paid for the project. When I went to check the dumpster (after they stated they were done with project) I personally had to break down the cabinets and put the three couches in that they said they would do. They also absolutely refused to clean the mouse poops stating that they sanitized the house and it's perfect and I am the problem. They were unprofessional, belligerent, and they are down right lying stating they worked on the project for over 100 hours over the course of 4 days and are INSISTING I pay them for it, pay them more money than I make in a year. I cant afford this and would not have agreed to this if they were going to charge more than they said they would. (I spent 10 hours doing the clean i hired them for in addition to extra projects and took 10 min and removed all the mouse poo that it took them "100 hours" to still not do. All I wanted was the mouse p*** gone and the walls wiped down, why is this so hard and why is there so much drama? Pretty sure they are fraudulently charging insurance companies.... this is my first home owning too... I was so happy and excited instead this is a nightmare.