I'm sorry to hear you'd like to cancel the add-on feature Social Posts. Unfortunately, as this is a billing related issue, we cannot cancel any product or service for you on the Community due to account security. If you could please give our Billing representatives a call, they will be more than happy to help with your request. The call will only take a couple of minutes, and there will be no pressure to keep the add-on feature if you don't want to. Thank you for your understanding in this matter.