To cancel your ChatGPT subscription, be sure to do it through the same channel...
https://www.scribd.com/document/1061172344/Why-Can-I-Not-See-Billing-in-ChatGPT-Business-218986
To cancel your ChatGPT subscription, be sure to do it through the same channel where you signed up, like the web, Stripe, Apple, Google Play, Business, or API