Ideal Hardwood Flooring

We gave a large job - about $12K to Ideal (owner - Nestor). This is a family business - wife, son and father. Initially they were very cooperative, worked with our designer for color selections etc. They completed the upper level and the basement level of our house quite well; but messed up the Main level of the house BIGGG time. The wooden planks are uneven, gaps between some planks, and no stain along some edges. After initial stain coat, I asked Nestor about paint sprays on the floors - he said 'Noo worry' I will take care of it. After the final coat I still see paint sprays. I spoke to Nestor and gave him an opportunity to fix. His wife and son came out, agreed it was bad work (see pictures attached) and assured to fix it in the next 2 or 3 days. Months later it is still not fixed and my phone calls are not being returned. I understand things get messed up sometimes....but a contractor who does not want to fix his screwups? You are forewarned!! Now, I have to pay double the price to fix the screwup... Side Note: We paid for the wood and Nestor picked it up from the supply store. About $250 worth of wood stored in the garage was to be returned. Nestor to return it Few days later, the wood disappeared from the garage and Nestor said he did not return the wood!! I cant say for sure who stole the wood, but I have my suspicions.