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Does cash back apply to online payments with credit card
Retail purchases are purchases made at retail, i.e.: as a consumer/individual customer. That would include any "standard" individual expenditure, but may exclude wholesale sales or purchases from merchants who identify themselves as service providers to businesses. Specifics of these limitations really depend on your card issuer, and you should inquire with the customer service at what are their specific eligibility requirements. As an example, here in the US many cards give high cash-back for gasoline purchases, but only at "retail" locations. That excludes wholesale/club sellers like Costco, for example.