What should I do if I accidentally overcharged someone?

[TooManyK9s]

I swiped what I thought I had entered as a $25.00 charge that somehow ended up being entered as $2500.63 that was charged to my client.  The charge was entered at 7:38pm tonight, and I was notified about it by my client at 11:45pm.  I requested a refund of the full amount at 11:49pm. 
Since it typically would take another 24+ hours to hit my account as a deposit, will Square be able to intercept this refund request BEFORE that original charge is processed?

[VanKalkerFarms · Accepted solution]

The charge is processed as soon as you finish the transaction.  it's just the deposits that happen next business day.  As long as you've already put in the refund request all should be fine in the next couple days.

[TooManyK9s]

Will it still debit those funds out of my client's bank account first?  And then take days before it's refunded again?   I was just wondering if by requesting the refund within a few hours of the accidental overcharge, that it may intercept the error and not have to put the client through the hassle and potential overdraft fees....sigh. 😕

[VanKalkerFarms]

once you swipe the card the funds are withdrawn.  

otherwise people would go over their limit because the funds would all be withdrawn at the end of the day.

[Wyton1]

I had the same thing happen to me. I failed to notice an "8" already on the screen before I entered 13.60 and hit "charge card". The customer never signed and it never showed up in my device Activity or Sales log, but the customer showed me the bankcard notification for $813.60 on his smartphone. I asked support what happened and Mark returned this excellent answer; Hi Walter, I’m so sorry for the confusion, but I’ll be happy to explain what happened. I located the transaction you mentioned, and I see that it’s been voided. That means the payment was not successfully captured and the cardholder was not charged. It was voided on 11/19 at 8:28 EST. A payment of $13.60 was made right after this payment. There are two ways a payment can become voided. Payments can be manually voided from the tip or signature screen by tapping the “x” in the top-left corner. Also, payments are automatically voided if they aren’t finished within 5 minutes or the app is interrupted. To confirm that a payment was successfully processed, you can check the Recent Activity within the app or your online Square Dashboard. It’s important to note that a voided payment may show as a pending transaction on the cardholder’s bank statement. You can let them know that Square has already sent a void notification to their bank, and it’s the bank’s responsibility to release any hold on the pending funds. If there was anyway to push this payment through, I’d do it gladly, but once a payment is voided we’re unable to retroactively process it. You’ll need to run this payment again to receive the funds. If your customer is no longer available, we may be able to communicate with them if we have any contact information from a previous payment. Please let me know if you’d like help reaching out to them. If you have any additional questions, please don’t hesitate to let me know. All the best, Mark Square Support