I signed a contract to sell my house and we agreed on 3% sales commission and it was wrote in the contract. The real estate agents then had photos and a video take of the house and two days after I received a copy of the contract and someone had changed the 3% to 3.3% without our knowledge. I want to know if this voids the contract and can I get out of the contract now because I do not trust them. Also would I still have to pay for the photos that were taken?