Estate/Letting agnecys are a night mare, i add 15% onto any job i do for them now, offering them a 10% discount if funds are cleared with 10 working days. Seems to work for most, one has just paid his invoice from October minus the VAT, called to tell them and got told we only stopped the net amount from the tennant. Not my problem, they have since sent the VAT. we wait & see. Makes you wander if its really worth the hassle working for these people.