There's been a few different things mentioned here that don't match up against my experience so I thought i'd try to summarize and correct some of the minor inconsistencies.
- Virgin Australia gift cards purchased from Woolies/Coles can be used to pay for your flight
- The maximum denomination is $100
- You can't use more than a single card online - to use multiple cards you have to do this manually via the guest centre
- I'd suggest giving VA feedback that this is annoying and they should fix it (without the feedback, they aren't likely to prioritise it). However you want to provide this feedback respectfully (email or via the guest centre)
- It is correct that there is no expiry date listed on the card itself or on the receipt - also annoying!
- There's a 2 step procedure to work this out or you can figure it out in one step if you have the original receipt with the separate purchase/activation receipt.
- The expiry date is (as of 2018), 3 years from your purchase date. e.g. if the purchase date is 01/01/2018, your expiry date is 01/01/2021
- I repeat, look at your receipt and if your card is activated successfully then above should work
- If you don't have your receipt or can't remember the date you purchased, you can ring the 1300 number, enter '1' for gift card, put in the card number (hash to finish) and this is where you use the PIN. It will tell you the balance and the expiry date
- You can also ring the number and talk to a human who will walk you through exactly the same process (card number and PIN) except it will take a bit longer as you'll be reading it and they are just keying it in at their end..
cheers
-j