You can top up your account directly from the user portal.
Log in to Hoiio Portal: https://portal.hoiio.com/auth/#/signin
1. Click "Top Up Credits" in the QUICK LINKS:
--> Enable auto top up if you would like your credits to be automatically topped up when your credits run low.
3. Click Complete Topup
- Credit card payment is more advisable mode of payment as the top up is immediate. For more info on cheque and telegraphic transfer, please refer to this.