ChatGPT Plus has a list price of $20, but the actual amount you pay often...

https://www.logo-bookmarks.win/chatgpt-plus-is-listed-at-20-but-the-actual-price-you-pay-varies-between-13

ChatGPT Plus has a list price of $20, but the actual amount you pay often ranges from about $13 to $27. This difference depends mostly on extra costs like VAT or GST taxes and additional fees from app stores like Apple or Google