curl -X DELETE 'https://api.tolt.com/v1/customers/cust_dK9bzRGn46BhVgNFHD6fDgXW' \
-H 'Authorization: Bearer <API_KEY>' \
-H 'Content-Type: application/json' \
-d ''

{
  "success": true,
  "data": {
    "id": "cust_dK9bzRGn46BhVgNFHD6fDgXW",
    "deleted": true
  }
}