If you subscribe or purchase a box on or before the 20th of a month, then you will receive your first box at the end of that same month. If, however, you subscribe on or after the 21st of a month, then you will receive your first box at the end of the following month.
Example 1: if you subscribe or purchase a box on 20th July, then your first box will be posted out on (or around) 31st July
Example 2: if you subscribe or purchase a box on 21st July, then your first box will be posted out on (or around) 31st August