In a Facebook post at 4.30pm, Octopus apologized for the suspension and said the service resumed.
Customers who failed to top up their cards online after paying by credit cards will get a refund automatically.
Money transferred from FPS for top-up will be stored in the Octopus wallet.
Octopus users report problems with the top-up system on Tuesday morning, saying they failed to top up their cards but still saw money deducted from their credit card accounts.
Bitcoin hit a six-month high and was within striking distance of its all-time peak on Tuesday as traders bet an anticipated listing...