Get all subscription Add-Ons for subscription

curl "https://api.reepay.com/v1/subscription/leasing_00425/add_on" \
  -u "priv_dbd002cf1313cb4213efcfb3afebfb66:" -H  "Accept: application/json"

[
  {
    "handle": "sn764654216",    
    "amount": 12900,
    "add_on": {
      "name": "Super Laptop X2",
      ...
    }
  },
  {
    "handle": "extended_laptop_support",
    "quantity": 1,
    "amount": 50000,
    "add_on": {
      "name": "Extended laptop support",
      ...
    }
  }
]