All this is doing is making people who have chosen to stay home more anxious/stressed as they will be worrying about other windies taking their customers, I’m not saying you mean to do this as you said they just booked up online but imo those customers are nobs if they are jumping ship with all this going on.
Some of the old dears are ruthless.
They mark the date of your next visit on their little calendar a month or more in advance, even if you had not agreed to it.
Then if you turn up later than what the X on their little calendar says you are greeted with their exaggerated arm waving movements as you exit your van followed by a barrage of expletives which would put a 1970's "adult" comedian to shame. And when you reply "Well do you want me to still do them then?"
They reply (through gritted dentures) "Go on then, i was just about to ring someone else but you'll do for now, and i want you to do the inside kitchen window this time?"
These are the one's that will jump ship given half a chance.