Stapler pin on raising bun

I found stapler pin on bun that i bougth from Spar....the worst part is that i already had taken a bite and as i waa chewing i made the discovery.The stapler pin has rust on it and I can only imagine the worst that could have happen if one of my kids swallowed.These i neglegent at its worst fro Spar and I am really dissappoint.I know they will probably not respond but i will not let this one go.I am going to each abd every social media platform to expose them.