Bell cell phone?

I have read other thread on this subjuct but i just wanted to make this to bee sure.

If i were to buy a bell unlocked cell phone on ebay, i would be able to switch it over and use it under my current contract. What i mean is could i take it into a bell store and they will switch it over.

Yes, however, it has to be a legit Bell branded phone that has not been marked as being lost/stolen. If it's just someone selling their former Bell Mobility phone, then there should be no problem. Some stores might charge you an activation/esn change fee.