Where to buy the Shanghai Metro Card in Pudong International Airport Port at T2?

I will like to use the Metro Card (the normal stored value type) to take the Maglev Train as well. Please advise me where can I get the card in Pudong Airport T2.

Also, i understand that any unused value in the card can be refunded. Please advise me where can i do the refund in Pudong Airport, on our departure day.

Thanks.