Can I return Oyster card to Heathrow?

Related questions

1. Is Walton on Thames in Oyster zone?
2. What is a TfL travel charge?
3. Can I use Oyster card on national rail?
4. What are the zones in London?
5. Can I use Oyster on TfL rail?
6. Can you give your Oyster card back?
7. What does a travel card cover in London?
8. Can I use my Oyster on South Western Railway?
9. Does London Oyster card expire?
10. What zones are covered by a Travelcard?

Tags

1. #refund
2. #oyster
3. #machines
4. #terminals
5. #underground
6. #station
7. #ticket
8. #refunds
9. #airport
10. #money
11. #deposit
12. #terminal
13. #heathrow