The association is the brand name of the Card which may be either the Visa Association, MasterCard (formerly MasterCharge) Association, Discover, American Express, Diners Club, Carte Blanche, JCB (Japan) and others. Associations charge a fee named “Assessment” on every transaction processed worldwide, whether or not this is reported on a Merchant statement. For example: if merchant is on Tiered billing, et al, actual processing fees may be hidden so that only the Tier qualification rate is shown.

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