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Note: While our most popular guides have been translated into Spanish, some guides are only available in English.

Can I select a specific date on which I will be charged each month?

Not yet. Future charge dates are determined by the first date of purchase. The second shipment for subscriptions will process 25 days after the initial charge to ensure you have sufficient Basis on hand. All subsequent shipments will process every 30 days thereafter. To make adjustments to your next charge or ship date, please send your request to

For monthly pay-as-you-go plans, depending upon the date of purchase, you may be charged at the beginning and end of the same month to ensure you have sufficient supply of Basis. If you would like to adjust the date your shipment processes, please send an email to; however, the cadence will remain every 30 days from that date moving forward.

For prepaid annual and semi-annual plans, you will be charged upon plan renewal. To change the date of your plan renewal, please send us an email with your preferred renewal date to