This limit is over a 30-day period. Essentially, the limit resets 30 days after reaching a category limit.
So, for example, if you purchased 40 pods on 01/01/2020, you would need to wait until 02/01/2020 (30-days) to order again.
You could have also purchased 2 vape kits on 01/01/2020, 2 on 01/14/2020, and 1 on 01/21/2020 for example. You would have to wait until 02/01/2020 to order again.
If you have further questions please visit our Help Desk.