I'm not comfortable with any of these, I hate to say. The person who's authenticated the most Kobes is Steve Grad at Beckett Authentication (BAS). It'll cost you $15 each to get an online opinion and while they have several authenticators there, I haven't seen a Kobe out of them that I had questions on.
You'll rarely find a genuine Kobe autograph offered for sale that isn't from a licensed signing or authenticated by a major reputable authenticator. That's because certified ones typically bring so much more and are much easier to sell. The authenticators most reputable dealers and auctions use for sports are PSA/DNA, JSA and BAS.
Jasmine, I'm not sure how Panini Public is different than Panini. I've never heard of it before but I'm not a sport collector. COAs and stickers are counterfeited, too, so it's best to verify the item is real before you pay for it.
Sadly none of these are real. The ball and card are really bad fakes and the shirt is also a better attempt but not real either IMO. Can you try to do a chargeback if you paid via credit card?