You can update quantity of automatic refills in your online portal.
Please go here (https://nimasensor.com/account/login) and login. Once logged in go to "Manage Subscriptions." From here you can see all your subscriptions.
Click "Edit" to edit the subscription.
You will see a pop-up.
To change the quantity, click the number in the statement "Ship X capsule packs." A drop down menu will appear with "1, 2, 3, or 4," click the number of desired packs.
Once you select the number click "Update subscription."
You will see the updated quantity under the description of the automatic refills.
If you experience any issues, please use Goggle Chrome and use an incognito/private window. You can open an incognito window by clicking "file" in the upper left hand corner.