This was a residential carpet repair job in the Sydney area. The damage was a pulled thread caused by a tradesperson when installing a new sliding door.
We had to cut out the damaged areas and then we patched the cut out areas with some of the spare carpet the property manger had left over from the original carpet instillation.
As it was brand new carpet we needed to make the repair completely invisible. Otherwise the carpet would need to be replaced at huge costs to customer.