Get list of panids using custom reference
This API call is used to retrieve a list of the panids stored in Cardtokens, which are matching a specific custom reference.

Endpoint and method​
Method: GET
Endpoint: https://api.cardtokens.io/api/cu/{merchantid}/{customreference}/customreference
In the endpoint URL, the {customreference} must be replaced with the customreference used in the watchlist
subscribe API call. The {merchantid} must be replaced by the merchant identifier used when subscribing the pan to
the watchlist.