My advice is that you shouldn’t trust only real estate agents or buyers. People are always looking for a profit, the buyer wants a low price, and the agent wants commission for the work. You should always double-check the information by yourself. When I sold my house, almost every buyer tried to negotiate the price. But I thought my house was worth a lot more, so I found a company that evaluated my house and determined how much it cost. By the way, this company later had bought my house.
https://www.thepropertybuyingcompany.co.uk/landers/sell-house-fast They're a leading genuine cash buying company and they did it fast.