ChatGPT Plus is listed at $20, but the actual price you pay usually ranges...

https://wiki-byte.win/index.php/How_Early_Should_I_Cancel_ChatGPT_Plus_to_Avoid_Being_Charged%3F

ChatGPT Plus is listed at $20, but the actual price you pay usually ranges between $13 and $27. This happens because of extra fees like VAT or GST depending on your location