Genuine clients know how to make a booking. They have been trained up by another SP' s

and it's always pleasure to deal with them. All what is takes is 1 text (a little bit introduction, time, date, lenght..thank you) then 1 phone call to confirm all details and maybe couple more messages with instructions. If I am in doubt I will ask them to make aw booking.
Clients who doesn't have aw account need to follow my booking rules otherwise they can go somewhere else. Too many texts, calls, questions already answered, postcode collectors - block. They wasting my energy I could give to nice genuine client.