Here are instructions on all of the changes you can make to your subscription:
How do I skip a delivery?
How do I change my order frequency?
How do I change the date for my next shipment?
How do I change my quantity?
How do I swap product flavor?
How do I change my shipping address?
How do I update my credit card?
How do I change my billing address?
How do I apply a discount code to my subscription?
How do I cancel my subscription?
How do I re-activate a cancelled subscription?