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

https://paxtonssmartperspective.cavandoragh.org/chatgpt-plus-price-in-the-eurozone-why-is-it-23

ChatGPT Plus has a list price of $20 per month, but the actual amount you pay can range from about $13 to $27. This difference is due to factors like local taxes such as VAT or GST and extra fees charged by app stores for iOS and Android