[tsac]

It sounds like the pin that came out was a release device and if you broke it then you may have a problem. I would see if the Bell technician has any tools or other method to remove it. Reading various online posts it seems the techs have different tools.
You have nothing to lose by trying at the store.

As for the contacts, All videos show the contacts down and the SIM adapter should fit the SIM tray.
The angle cut should line up with the SIM adapter which lines up with the SIM tray.
The only thing I can think of is the SIM is not on the adapter side correct or the adapter is not for normal SIM's
Real weird.