# POST /credit/api/getCreditCardCollectionInfoByCardRefNumber

**Resource:** [Collections and legal follow-up](../resources/Collections-and-legal-follow-up.md)
**Service that lists the debt and payment details of supplementary cards linked to the selected primary card**
**Operation ID:** `getCreditCardCollectionInfoByCardRefNumber`

Retrieves collection-related information for a credit card using its MainCardRefNumber. Validates the card and customer existence, fetches delinquency information, and returns details including delinquency days, limit, and remaining statement amount.

## Request Body

Get Credit Card Collection Info By Card Ref Number Request

**Required:** Yes

**Content Types:** `application/json`

**Schema:** [GetCreditCardCollectionInfoByCardRefNumberRequest](../schemas/Get/GetCreditCardCollectionInfoByCardRefNumberRequest.md)

## Responses

| Status | Description |
|--------|-------------|
| 200 | Success |
| 400 | (reference) |
| 404 | (reference) |
| 500 | (reference) |

**Success Response Schema:**

[GetCreditCardCollectionInfoByCardRefNumberResponse](../schemas/Get/GetCreditCardCollectionInfoByCardRefNumberResponse.md)

