I bought an item off of Mercari. They do not stand behind their buyers at all. Cally112 sold me a used, defective Ring doorbell that was listed as new. When the installer hooked up the device it didn't work. I contacted the seller and Mercari. Mercari said I had 3 days from when it was delivered to file something, Really? The seller accused me of lying even though I offered to send the purchase receipt of the Ring I had to buy at Home depot. Never again with this awful company.