ChatGPT Plus has a listed price of $20 per month, but the actual amount you pay...

https://www.pawn-bookmarks.win/chatgpt-plus-is-listed-at-20-per-month-but-the-actual-price-you-pay-can-range

ChatGPT Plus has a listed price of $20 per month, but the actual amount you pay can range from about $13 to $27. This variation happens because of things like taxes (VAT or GST) and extra fees added by app stores such as Apple’s or Google’s