Open Question: How can I check if my credit card is overdue?

The thing is... I left the country and gave my son to look after it. (Credit card VISA) he has told me that he has used it a couple of times (relatively good enough reason) but I just want to see how much was used (overdue). There's not much problem with paying for it. But since I am out of town I can't go to the bank and check myself. Anyway I can do it online? Thanks a bunch