Revive Superfoods interview questions

Process was pretty easy. I had one interview with the manager and after a week or so they told me they hired someone else. But then after another week they contacted me again saying the position has opened up again and if I am interested they will directly send me the offer letter. I negotiated the price and told them I would need to give a 2 week notice to my company (which I had also mentioned during the interview) and they had no issues at all. They sent me the offer letter and I asked if its POSSIBEL to change the date to TWO days later since I have given my 2 week notice and it ends then. Instead of negotiating or asking me to join then, they revoked my contract. I told them its okay I will join on the date given but they said sorry we need someone to start immediately in 2 days. I don't understand how you go from 10 days to 2 days and not once did they mention they need someone immediately. I had already given my 2 week notice as well at this point. Terrible terrible management. I have never heard or seen someone this unprofessional in Canada. Why did you send me the offer letter when you did not want me to join? They lied and made terrible excuses.