Why your guests don't use your WhatsApp number

They have the number. After the first ride you typed it into their phone, or they into yours. Next year they are back in the same town and they ask the hotel desk, because they cannot tell whether you are working.
A WhatsApp number does not say you are free. It does not show the car. It does not remember the villa. It is a thread they are shy to bump.
The page is that number, done properly. They open it from the link you sent, or from the card in the headrest. They see whether you are working. They tap Pick me up. They watch you come. They pay you.
Nothing in between. No one else sees them. The guests stay yours.
This is the first note. The next one follows in the quarter.