Never trust, always have in writing

Short rant - I stay in HSR layout , my housemate told me to find a place to stay since he would be getting his wife here ( he gave me ample time to search) , I found an uncle in the same building who offered to sublet his house to stay alongside his son , it was all peace and mutually understood to split any expenses. I was all good and happy , got the room painted and shifted all my belongings. 2 days later , this uncle straight up came up to me and said I have to vacate the place asap , owner is creating a fuss ,I asked him for the owners contact , he denied outright , and kept giving reasons. He now expects me to leave me home within a week ( how tf am I supposed to find a place within a week, my parents got involved and spoke to the uncle but no avail , he's been verbally abusive and illogical)
Never trust people here , always have things in writing , you never know who turns out to be a snake. ( My sheer naivety has made me suffer now),be extremely careful out there!