curl --request POST \
  --url https://mention-me.com/api/merchant/v2/customers/rewards \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "identifier": {
    "type": "email",
    "value": ""
  }
}
'

{
  "data": {
    "customer": {
      "customerId": "CUST-1234",
      "email": "email@mention-me.com",
      "firstname": "Jane",
      "surname": "Doe",
      "phoneNumbers": [
        "+447123456789",
        "+447987654321"
      ],
      "profileUrl": "https://mention-me.com/merchant/123/customers/43211234"
    },
    "rewards": [
      {
        "id": 123,
        "fulfilledBy": "<string>",
        "amount": 100,
        "description": "<string>",
        "beforePurchase": true,
        "minimumFriendsRequired": 123,
        "spendConstraint": 50,
        "callToActionUrl": "https://www.your-website.com/new-customer-welcome",
        "couponCode": "ABC-DEF-1234",
        "couponLink": "https://www.your-website.com/redeem?code=ABC-DEF-1234",
        "securityCode": "12345",
        "expiryDate": "2023-11-07T05:31:56Z"
      }
    ]
  }
}