The milk man not there today I was supposed to get the prize can you tell me what happened plz?

We already have an answer for a similar question which you can see here:
Why has the milkman stopped deliveries?

If you have more answers to add you can do that below.

If you did not receive the Delightful Dairy decoration, contact customer support through the "help" button in the game settings (green gear icon), and give them your game user ID (written below the "help" button).