You may top up your e-wallet through the online credit/debit card top up system. Do note that a Payment Gateway Fee of between $1 - $3 will be chargeable for top-ups up to $200.
Should you top up a custom amount (more than $200), there will be an additional $1 Payment Gateway Fee imposed per $100 increments. E.g. if you topup $300, you will incur a total of $4 in Payment Gateway Fees.
While your membership is active, the credits in your account do not expire. However, do note that Tribecar may close your account if the account remains inactive for the past 2 years.