Just removed several oil stains and candle wax stains from a house. They had some carpet, and some pieces taken out from a closet. I attached the pictures.
The solution after the cleaning companies failed to remove the stain
In this process, carpet was heavily damaged from the oily boots and spills. No cleaning company could have done it. Carpet was damaged really badly, and needed to be replaced or partially repaired. We repaired the carpet by cutting the severely damaged areas and putting new pieces in.