yeah I posted the screenshot on world elite telling my lot about this ridiculous con to get people to spend silly I think it only applies say if your upgrade has x hours left to go and you use gold balls to speed the process up . That's the only way you'll be discounted I reckon, so you use up your goldballs on upgrades you then end up paying for more because they've wiped you out naughty but I reckon it's a con to force you into spending when they wipe your gold balls out meanwhile the discount they talk of I don't believe it personally and you've already handed your goldballs over so you become powerless.