If you’re a Wal-Mart shopper, you might want to check your receipts. Several Charlotte-Area Walmart stores have just been fined over $22,000 by the North Carolina Department of Agriculture and Consumer Services Standards Division Measurement Section. According to a press release, 3 Walmart locations in Mecklenburg County and 1 Walmart location in Gaston County were found to have high overcharge error rates for common items.