To answer that question among other questions asked regarding the site, you need to maybe set up a payment card. Additionally the sellers are rude on there, and the purchasing is very unfair. Something you planned on purchasing and made an offer on, the seller will sell to another person. The site is very unfair. They also do not make the sellers update their listing, and when you purchase something the seller will comeback with that is no longer for sale. They do not make the sellers do in detail sizes, and they do not make the sellers post more than one picture of an item. Like a shoulder bag (1 picture and no size), when Poshmark should say nope cannot list without more photos and more detail and you must respond to questions within a 24 hour time frame.
Another issue I find is that they want you to share your listing so it gets out there and you can share any one else's items, and I think if you share another sellers item you should be able to leave a comment for Instance "this is nice" will get more attention. I have been on the site since 2016 and it hasn't been upgraded to anything but now the live poshmark shows which to me are a nuisance as a lot of people work during the day and do not have time to watch a show.