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