foundit interview questions

Interview was good. But the process following that was very brutal. I got selected and was asked to join immediately, which I agreed to. I shared all my details including payment details but then they extended the internship start date to 18 days later than promised, which was June 2nd or 3rd. Then they again changed it to June 20, which was only informed after I asked personally. On 20th, they informed that it has further extended and the date will be shared soon but they never shared it and also, informed my college placement committee that they have dropped this offer.