Question on ebay returns (after 30 days)

[Frankish]

Out of thousands of purchases over 20 years, I've probably returned less than five ebay items. But somehow now I find myself with three items I want to return, all after the initial 30-day window offered in the listings. Admittedly, I went on a bit of a buying spree the last couple of months, which may account for it. I'd consider all of the items "fakes" in one way or another, and charitably one might say they are simply not as described:

1. An autographed baseball card from the 50s. When it arrived, I wasn't ecstatic about the signature so decided to get it authenticated. It just came back from Beckett marked as inauthentic.

2. A photo that was listed (very clearly) as Type 1 but came back Type 3 from PSA Authentication services. In fairness, this photo looked quite good and I wasn't initially suspicious...I'm just in the habit now of getting any valuable ones authenticated, mostly in case something happens to me and my family has to sell them. But i'm not sure it's fair I should be left holding the bag just because I was the one who sought authentication.

3. A fairly expensive (to me...low four-figures) card that I sent to PSA for grading express service and just came back as ungraded/signs of trimming.

In all cases, the 30-day window passed because the authentication/grading service took longer than that to examine and return the items.

I contacted one of the sellers who said their return window was closed and plan to contact the remaining two sellers this week. But I just want to know if there is there some sort of blanket policy at ebay for fakes or misrepresented items with a longer window, that way I have my facts straight when I contact them.

Sorry if this has been covered endlessly or should be in another section. I looked around and couldn't find any definitive answers.

Thanks in advance!