How do I download the game I bought?

I pre-ordered Bordelands 3 and got my 2K confirmation email. But, now I can’t figure out how to download the game. The confirmation email said that once my order was released they’d send me an email with my activation code. Never got it. Checked spam too. They hit my PayPal for $99.95 though. Am I missing something here??

Maybe its in another e mail, or try resending it or make another 2k account, dont know tough, i play on ps4