I had a similar one last week.
I mainly do quotes over the phone and the footage worked out at 1700 feet.
I quoted £ 410-00, and explained my whole cleaning system as I always do.
Now, because I had the post code and the name of the house I had put it into Google, and found it had just sold for £875,000-00. Grade 2 listed, stables, yada yada.
I spoke to the man who said it was too much and they had decided to use a Rug Doctor. I told him GOOD LUCK sunshine, and good luck to your back, and good luck to your underlay!
He said he might call back in future, but I said dont bother as you would probably have ruined the carpets anyway.
Twazzer!