If you want to put credit on your card to use the laundry service, you can do so either by ATM in the downstairs lobby or at the college office. If you go to the college office, the credit added to your card must be in multiples of ten (10, 20, 30, etc).
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OttoJOyster cards or Octopus cardsOf course I know nothing about those local cards.
OttoJwould the word 'credit' be wrong?The word is probably just fine.