Vodacom Voda bucks are useless and not worth the purchase!

I bought a Pick n Pay voucher on my Vodacom app using some of my Voda bucks and cash which was deducted from my bank account. I received the wicode only to realise it comes with an expiry date 😡. I don't understand why they would have an expiration date on it giving you only a few days to use it when you purchased it with your own money and should be able to use it at your leisure. Even if you had a month to use it would be fine not less than a week! I never had the time to go with the flooding that was happening in Kzn and now my wicode and money is forfeited 😡😡😡