I'll assume you already sprayed the hell out of them. Break them free by whacking them in further. That way the tip isn't deformed and it will still slide out. If the pins bend, they're quite soft, just hammer them straight.
i had to buy new pads and a rotor last year, and i didn't get any pins with anything. i used the same ones that were installed already. then again, the only difficulty i had was changing out a rotor and both front pads with no instruction or guidance.