curl --request POST \
  --url https://api.notchpay.co/customers/{id}/block \
  --header 'Authorization: <api-key>'

{
  "code": 202,
  "status": "Accepted",
  "message": "Customer blocked successfully",
  "customer": {
    "id": "cus_123456789",
    "name": "John Doe",
    "email": "john@example.com",
    "phone": 237600000000,
    "company_name": "ACME Inc",
    "address": {
      "country": "CM",
      "city": "Douala",
      "address_line1": "123 Main St"
    },
    "created_at": "2023-01-01T12:00:00.000Z",
    "updated_at": "2023-01-02T12:00:00.000Z",
    "blocked": false
  }
}