Please note, if you want to make a deal with this user, that it is blocked.
Yes, in order to get the pin of the dump you must use a skimmer that has a small camera on it to record the pin number. Or you can place a fake pin pad over the real pin pad. Either way, you need a skimmer.
You could also try and phishing page, but those usually don't work well when they ask for your bank pin number.