TERRIBLE / INCORRECT information given by the game call center.

I phoned yesterday - 28 November 2019 to find out if I can use my Dion Wired account card to shop at Game, a girl by the name of Janade informed me that I may use the Dion Wired card at Game, I then asked her so can I buy online at Game using my Dion Wired card to which she said yes again. I have been up since 3AM today - 29 November 2019 trying to buy two items (which there was stock of) and keep getting an error when completing my card number..I then phoned again today at around 8 and waited more than 20 minutes to get through to a consultant and was told today that yes I can use the Dion Wired card to shop at Game but only if I go into a Game store as using the Dion Wired card online gives errors... This is honestly shocking and terrible service as I outright asked can I use the card to shop online and was told yes. I phoned to ensure I'd be able to use the card online but now I'm being told I actually cant, I would have gone into a Game store should I have been given the correct information. Now when I go and look online the items I want to buy are no longer in stock.... This is TERRIBLE service as I followed the correct steps to ensure I could buy what I wanted and was given incorrect information and now I've missed out on the deals.