> For the complete documentation index, see [llms.txt](https://penida.gitbook.io/cowlendar-help/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://penida.gitbook.io/cowlendar-help/pricing-questions/i-just-paid-for-a-plan-yesterday-but-i-want-to-upgrade-another-plan-will-i-pay-twice.md).

# I just paid for a plan yesterday but I want to upgrade another plan, will I pay twice?

No worries you will only be billed the difference :smile: All billing is handled by Shopify and they will properly track this!