paypal payments pro double charge
My client has told me that occasionally, they are receiving multiple orders with the same invoice AND these customers are being charged twice (even a third time on one occasion).
All of the sessions are cleared on a successful transaction, and the problem is intermittent
Can anyone advise on some checks I can make to try and pinpoint the problem ?
The issue seems similar to one where IE customers were getting trigger happy on add to cart button , resulting in the same item added to the cart 2 or 3 times, but this was resolved by modifying the 'if in cart' behavior, maybe unrelated, but a thought.