preferred customer
noun[C]
MARKETINGukusacustomerwhopaysacompanyalowerpriceforgoodsorservicesthan othercustomers,especiallybecause theyregularlybuyfrom thatcompany:
Yesterdayafternoon, a fewbankscuttheirprimelendingratetopreferredcustomersto 8% from 8.5%.