i an a flooring subcontractor in Phoenix providing labor for a new home builder design center. i was recently told that i'm going to be back charged $23,000 for a tile floor that we installed and the homeowner isn't happy with the grout joints so they have decided, without any input from me, that i will buy out the homeowner in the amount that they paid to the builder for the upgraded floor. This is many times the actual cost of the material and labor since the builder's mark up is extremely high and the homeowner will still have the floor. The contract that i signed with this company has no provision for back charges.