The information you linked doesn't seem to indicate that a grocery store would do this. > Level 3 credit card data involves large transactions that take place

The information you linked doesn't seem to indicate that a grocery store would do this. > Level 3 credit card data involves large transactions that take place primarily with B2B or business-to-government (B2G). These transactions take place using corporate purchasing cards, which allow the companies or government agencies to monitor purchases and have access to detailed spending reports. Instead, it seems that level 1 would be what most businesses that sell to consumers would use > Level 1 data primarily refers to small business-to-consumer (B2C) transactions. This level only requires the following information for credit card transactions: Merchant name Purchase amount Date Billing zip code