Oyster cards are usually £10 pounds but it depends on which one you're buying :p
No but the credit can expire.
Oyster cards can only be used in London.
Some cards expire, but some do not. On the paper it was glued on to, it should say, or on the back of the card.
no
No they don't.
no
The student cards for the 10 hr and 30 hr course do not expire. Credentials as an OSHA Outreach Instructor DO expire, but not the student completion cards. They are discussing changing that in the future.
No well not were i live
yes they if you run out of money
Yes, prepaid gift cards ever expire. However, some gift cards like paypal gift card don't so you should check with the agency.
You cannot use 'pay as you go' oyster cards at Romford station but you can use travel cards paid for on your oyster card. The reason for this is that the rail operator does not want to pay for the installation of the facilities but the local MP is pushing for Romford to have it installed