knowing your own Activation Date? and "your serial number is already registered"

[lorcar]

hi everyone

i remember there was a link where with your MBP serial number they would tell you when it was activated
I cant find it anymore. Any help please? I'd like to know when my 1year support expires in order to choose to activate additional plan or not.

Also, I bought my MBP retina from someone else. WHen I log in with my Apple ID, and try to register my MBP it says "your serial number is already registered with another apple ID"
what should I do?

thanks in advance

 

[Swampus]

https://selfsolve.apple.com/agreementWarrantyDynamic.do