curl --location 'https://dev-gateway.mydartdigital.com/collections/card/payment-advice' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"amount": 500,
"currency": "NGN", // supported currency NGN, USD
"merchantRef": "Ref-Dart-63727382", // your uiqune
"callBackUrl": "https://account.mydartdigital.com/",
"narration":""
}'{}