The listed ChatGPT Plus price is $20, but real costs vary from $13 to $27...

https://www.bookmarking-jet.win/chatgpt-plus-is-listed-at-20-per-month-but-the-amount-you-pay-varies-from

The listed ChatGPT Plus price is $20, but real costs vary from $13 to $27 depending on where you buy it. Differences come from taxes like VAT or GST and extra fees charged by app stores