I've tried but it keep sending me to pre made answers.

Maybe I'm dumb but if you know where can I talk to an actual person, I'd appreciate a link
Edit: I've found the email and asked them for a refund.
I'll post the result here for if anyone else has this issue.

You can try contacting support. They might be able to revert it.

It seems I just crafted 2 of the same legendaries.

After crafting the 1st one the interface was showing how I haven't nor used the dust nor made the card, that made me craft it again which resulted in crafting it twice.

Is there a way to get a refund on what it seems to be the fault of a bug in the crafting interface.

Anyone had a similar experience,

I've been playing this game for a while now and I've never had this issue.

Pretty annoying that there is now a good chance I've just thrown away 1200 dust due to a bug.

Bug in crafting