WhatsApp booking is the whole reservation done in writing, in one thread the office answers in about ten minutes, day or night, with Telegram as the alternative.
No switchboard. No hold music. A thread. You write, a person at the office reads it, and a reply comes back in about ten minutes, whether it is noon or four in the morning. Telegram reaches the same desk for anyone who would rather not use WhatsApp.
Put five facts in it. The technique, or simply B2B. The length. The hour, or the word now. The address, or at least the part of town and whether it is a hotel. Whether you have booked here before. A message carrying all five rarely needs a second exchange.
Acceptance, or another hour if yours is taken. The total fee. Where a deposit applies, its exact figure and the payment details, written in that thread. Then the timing: forty to sixty minutes for a booking wanted now, or the agreed start for a later one.
A thread is a ledger. The price, the half, the address and every change of plan sit there under a timestamp, and both sides can scroll back through them. Nobody mishears a room number. Nobody remembers a figure differently once she is at the door.
Payment details come from the confirmed thread you booked in, and from nowhere else, and only once the office has accepted. A message asking for money before the yes, or from outside that thread under any number or name, did not come from this house. Ignore it, and mention it on the booking line.
The sequence from first message to knock is on the booking page. Anyone new to the house may want the first-timers guide as well.