Olx and UPI - Olx phishing

I uploaded my ad of my study table and other furniture to sell on amazon. Wighin minutes , i received a message and number of the person who seemed interested in the product. First a lady talks to you . She identifies herself as a resaler of furniture in R.K.PURAM delhi, sector-*. Then her husband takes over the conversation and askd me to share my UPI number without any personal visit anf refuses for making cash payment. He transfers * rs to me first and i incidentally axcepted his UPI transaction. * rs. Were first deducted from my account. Then * rs. Were added. So i refused to accept payment in this way but both husband and wife kept on torturing my husband and me to clivk on their multiple UPI and paytm links. They kept on calling from different numbers and for like * hours. .they kept on chasing me and my husband through messages and calls.