Fortnite

I wanted to buy "Fortnite - The Cobalt Pack" on Xbox since I don't want to pay with a credit card in Fortnite because I've heard of a lot of accounts that's been hacked in Fortnite.

I couldn't see the pack in Microsoft Store on my PC but I did on my mobile, so I bought it on my mobile instead.

The problem is that I haven't got the pack.

Also, before I bought the pass I connected my Epic Games account to my Microsoft account.

I couldn't find anything about this on the support or anywhere else. I have even tried to google it, but it didn't work.

Please help.

:)