ChatGPT Plus is listed at $20 per month, but the actual price often ranges from...

https://ericksexcellentblog.image-perth.org/chatgpt-plus-message-limit-is-it-really-160-messages-per-3-hours

ChatGPT Plus is listed at $20 per month, but the actual price often ranges from $13 to $27 depending on where you sign up. This happens because VAT, GST, or app store fees are added on top