Scammers all the way! As a seller and buyer I will never use them again. Selling, unjustified doubling of shipping charges after sale is complete. This is called bait and switch fraud in any other context. Zero customer service. Kafka-esque circular non communication. Their new return policy is absurd. Buying, their new fees are as absurd as their new return policy.

Seller beware! Seller beware!! I sold an authentic perfume which I have a receipt for proving it came from an authorized retailer. Upon receiving it the buyer claimed it was fake based only on it "not smelling right" and asked Mercari for a refund/return. Mercari said they were initiating a "review". There is no way to contact Mercari or add your side of the story to the review. Within a couple hours they ruled that the item was "not as listed" despite buyer images looking exactly like my listing images so clearly it was the same item I was advertising for sale. Mercari did not reach out to me for my evidence, side of the story, or proof of authenticity, which I would have happily provided. So the buyer is returning it after using some of it. I am out the cost of my packaging materials, and now have an item with less product in it that has been deemed inauthentic by Mercari despite being 100% legit. Glad it was an inexpensive item that I learned my lesson on.

Be very careful with the Mercari… Be very careful with the Mercari platform itself when buying or selling. The company’s A.I. Bot scans ads and transactions for activity that could be ‘construed’ as a violation thus prohibited conduct. The system will then simply shut-down your account and attempt to freeze your funds. - Escalating the situation to a human/customer service has no bearing or influence at all. - It almost seems like this is one of Mercari’s revenue streams is to shut-down account and keep your funds. I highly recommend using other well known and trustworthy platforms instead.

False Advertising I purchased a necklace listed as an authentic Tiffany and Co. brand. In January of this year. It is now April and the silver on the necklace is tarnished. Because their policy is 15 days you have to make a complaint they can’t do anything about it at all. Not even investigate and message the seller about false advertising. A real Tiffany necklace will probably not tarnish at 15 days but did at 4 months. Ridiculous. I do not trust Mercari anymore as it appears there is no way for them to regulate the sellers items and advertising

Mercari frequently updates its… Mercari frequently updates its policies, such as adjusting shipping prices, and initially required sellers to manually update their listings to reflect these changes, which seemed questionable. Lately, Mercari has stopped charging sellers selling fees, instead shifting the cost to buyers. This change has made buyers less willing to pay for service fees on top of shipping and taxes, resulting in fewer sales. Additionally, Mercari now charges sellers a $2 fee for withdrawing any amount of balance, every.single. time, which is excessive!! When buyers stop making purchases on Mercari, sellers don't make sales, which means Mercari doesn't earn any revenue. Bad decision Mercari.