Well, that was fun. I periodically check the online page of my credit card account. Today I noticed a charge for 10 cents from Walmart yesterday. Yesterday, I bought twice from Walmart, once for medicine using my Medicare Supplemental OTC account, and once for groceries using a gift card my wife got from the Bingo people. Nothing was 10 cents, and neither purchase involved my credit card.
After about an hour on the phone, the CC company is going to issue a credit for 10 cents.
Customer service people must hate old retired people with nothing better to do.
I’d recommend getting a new credit card. Small changes that are likely to go unnoticed are often test transactions from stolen cc numbers or duplicated cards.