I agree completely Mike H.
I only do tenants these days.
Recently I did a full house for a young lady (moving out tenant) all happy and paid me.
One week later the letting agents called, REALLY snotty attitude saying "To be honest they don't look like they been cleaned, we are not happy, please go back a re clean"
I said "I don't know what your talking about they came up great, I'm happy to go back but only if MY customer Mrs xxx wants me too. Ill call her now"
So I called my customer and asked if everything was ok with the job and she said, "nope I don't want you to go back you did a great job, we was very pleased, sorry they called you, the letting agents have been basta*ds all along, leave it with me" (we had a longer chat really about what as*holes letting agents are
)
Letting agents treat tenants like sh*t, they'll treat carpet cleaners the same if you let them, I'm happy I don't work for them anymore.