I’m confused yet thrilled..???

We have just started a dog sitting service this year with no clients yet but since we have a hustle since last month I’ve gotten the Plum and Amex Prime business cards with 3K and NPSL BUT here’s the catch! My wife got a Blue Business Cash for OUR business with a 15K limit?! She put everything I did too. Same name on card, same number of employees, and everything else except she put her own name as the “legal business name” and I put mine as the “legal business name” and our dog sitter service name on the card name yet how did she get 15k on BBC and I only got 3K on Prime Amex and Plum with NPSL?????? Is it because it’s her first business card on HER Amex profile but wouldn’t they know the business is both of ours so they saw I have a 3K Amex Prime limit and a NPSL on my end so they gave her more? We did our sole prop like YouTube influencers tell you to do when applying but we were tempted to put the “we own 25% or more of the business” but we didn’t wanna risk anything so we just went with sole prop but anywho how did exactly she get 15k and I only got 3k? Yeah. She has a 800 credit score with only 5 personal cards, and hasn’t applied for a card for about 6 months AND it was Credit Karma guaranteed but we both own the business so i don’t understand it is all.. will please anyone help explain this to me? Thanks.