I've been doing some bitcoin collections from some sites to see how they work. Suprizingly, I got a double payment in one of my transactions
Notice one says pending the other has been verified. The pending one is the one that was mistakenly sent. I don't think it was sent by mistake, somehow I just got doubled payed.
I got this through automated payments from a site that provides bitcoins for clicking ads, I don't think the mistake was from their system.
Why do you think the mistake was done elsewhere, but by those that send you the coins?
Any insights?
WIthout a transaction ID its hard to say. Double spends are not possible with confirmed transactions and your wallet/service should reflect that over time. It is possible to have two competing transactions, but only one can be confirmed.
