One of my only call back was indirectly for an agency,not one that i do much work for,tenant had been in 2 years from new,had me out after the first year to clean all carpets.
Also did the eot when he moved out,carpets were berber,pale,and in good condition,apart from wear in front of chair and sofa,there was also oil from his motorbike in the entrance,which i got out completely.
I was happy with the job,they looked more or less new when i had done.
Got call back the day after from the agency,who were not happy !!
Went and did the worn areas again,and my waste tank was clear when i emptied,even put some in a plastic bottle to show the agancy it was clean !!
Just couldn`t get it through to them that it was due to 2 years worth of wear and tear ! Not done anything for them since,and glad of it to be honest