Messy messy upgrades with Discovery Bank

I transitioned from a blue account to a gold account. Surprisingly, at the end of the month, there was an unexpected R36 charge that wasn't mentioned anywhere. It appears that when you upgrade with Discovery, they automatically categorize your new gold card as an "additional card." Since this is done "automatically," it falls on the customer to address. Consequently, they had to cancel all my cards and issue a new one. Not the smoothest experience with this bank!