Why was I charged twice?
Whenever a payment card is swiped or manually entered, Square authorizes it to check the availability of that card’s funds prior to actually capturing the payment. Some banks reflect this activity as a pending charge or by placing it in a separate section of an online statement (they are oftentimes offset in parentheses). These are not actual charges, but Square verifying the money on the card. In 2 business days, these charges will drop off your credit card’s account statement.
If a payment is voided, declined, or interrupted for some reason, you may receive a pending transaction on your card statement. Our payment processing program, Square, sends a void notification to the card-issuing bank as soon as a payment becomes voided. This notification informs the bank that Square won’t be capturing the payment in question. Once this notification is sent, it is the bank’s responsibility to release any hold on the money in the cardholder’s account. Most likely this duplicate charge is not a cleared charge and will show as pending.