ChatGPT Plus is listed at $20 per month, but you might pay between $13 and $27...

https://www.mediafire.com/file/yjut74llakej1hf/pdf-37467-61545.pdf/file

ChatGPT Plus is listed at $20 per month, but you might pay between $13 and $27 depending on where you subscribe. Differences come from taxes like VAT or GST and fees added by app stores such as Apple or Google