Someone I know is out of town and I am house sitting for them and they asked me to look at their Macbook because it wasn't charging for them. Turns out the T-style mag safe adapter is the issue and there must be a faulty wire somewhere in the adapter. I remember reading previously that Apple was replacing out of warranty T-style mag safe adapters due to a class actions suit. Are they still doing this? They asked me if I would mind going to the apple store for them while they are out of town. Would I be able to get it replaced by the genius bar without knowing their apple ID user name and password? Thanks in advance