Every 3, 4 or 6 months, depending on your selected subscription. For example: If you set up a subscription on the 1st of January to be delivered every 3 months, we will take payment for your first order on the 1st of January, then take payment for your second order on the 1st of April (bank holidays permitting).
We will always send you a reminder email 7 days before your next payment is due.