Purchase 10 messages via whatsapp directly from Mister Smith.
Include your number in the purchase notes.  Nothing is taboo. You will recieved one text to confirm your details so Mister Smith has the right number a long with a question to what kind of replies you would like.
 
You can choose from the following.
Friendly / Casual.
Humiliating / Harsh.
Abusive.
Daddy / son
 
If you prefer to us TELEGRAM messaging system then include your user name.
 
(Do not including a postal address in the purchase info as this is not a physical item).