delete https://public.billsby.com/api/v1/rest/core//subscriptions/
Cancel an individual subscription using the unique identifier of the subscription in the Billsby platform
You can use this API to cancel a subscription. All you need to do is provide us the subscription ID and associated customer ID. Once you have found the subscription within the Billsby app, the associated customer will appear in the top right hand corner of the individual subscription. Alternatively you can use the Get List subscriptions API to return the the subscription IDs for your product.