1. A method comprising: retrieving from one or more databases a first set of information comprising payment card transaction information attributable to one or more foreign payment card holders; wherein the payment card transaction information is generated via a payment card system; retrieving from one or more databases a second set of information comprising domestic merchant information of one or more domestic merchants; retrieving from one or more databases a third set of information comprising domestic educational institution information of one or more domestic educational institutions; analyzing the first set of information and the second set of information to identify purchasing and payment activities of the one or more foreign payment card holders by date at the one or more domestic merchants; identifying shopping patterns of the one or more foreign payment card holders at the one or more domestic merchants based on the purchasing and payment activities of the one or more foreign payment card holders by date at the one or more domestic merchants; determining residential geolocation of the one or more foreign payment card holders based on the shopping patterns of the one or more foreign payment card holders at the one or more domestic merchants; analyzing the third set of information to identify geolocation of the one or more domestic educational institutions; comparing residential geolocation of the one or more foreign payment card holders with geolocation of the one or more domestic educational institutions to determine a relative degree of proximity of the one or more foreign payment card holders with the one or more domestic educational institutions; and assessing the determined relative degree of proximity to facilitate determining whether the one or more foreign payment card holders are affiliated with the one or more domestic educational institutions.