We may hold sales on our subscription product from time to time, typically once per year. We've learned that sales are a useful tool to include users who may not be able to afford the product at its normal price.
Users who purchase the product at normal pricing gain access to the product at a guaranteed price, and at a guaranteed date. Users who hold out for a sale, on the other hand, gain access to the product at an unknown price, and at an unknown date. For this reason, during sales events, we do not price adjust for users who may have purchased the product at normal pricing.
(The exception to this is if you purchased at a non-discounted price within your specified refund period prior to the sale, since technically, you can request a refund, and then purchase at the discounted price.)