I had similar charge and have no idea what it is but my Bank of America had declined it for me and Alarmed me about:
Security Alert: Unusual credit card activity detected
We're letting you know that we've detected some unusual activity on your Bank of America credit card on 07/07/2018. For your security, please verify the following transaction(s) so that you can continue to use your card.
Declined transaction at PILOT 00873 for $500.00 on 07/06/2018