I've sold hundreds of items, but I can't stop striking out as a buyer!

The last 2 years I've mostly focused on selling on Poshmark, but recently I've decided to buy a few things. I like to bundle, because if a seller has one thing I like, I imagine they would have more. My last 3 orders/bundles:

  1. 4 Lululemon items - one was extremely fake. Hard to tell in photos, but obvious in person. It was a completely different brand, that was trying to pass as Lululemon. Posh offered a $20 credit, even though I paid $25 for the item. (No bundle discount from the seller.) I accepted this, as I didn't want the hassle of returning.

  2. 6 high end hair products - seller didn't include the most expensive one in the package. Again, another $20 credit offer, even though the item was $35. (I accepted this as the seller did offer a bundle discount.)

  3. I bundled quite a few clothing items from a seller. One was a swimsuit that the listing said was brand new and never worn. It arrived with the size tag cut out and there was no hygienic liner, with some staining in the gusset. I feel bad, but I'd rather return the whole order than pay $30 for a used swimsuit.

Rather than offering me to return the whole order, Posh offered me a $4 credit. Of course I refused that offer - but I imagine their offer is based on my recent order/return request history.

I'm really just having bad luck here I think, but now I'm worried Poshmark might blacklist me or something. Is that a thing they do? They make way more money on me as a seller than a buyer, but I'm curious if they ever retaliate for too many cases opened? Maybe I'm just being too picky of a buyer, but I think I'm done buying for awhile.