What if i go with a document saying i am going to give interview for Tier 2 job

I went to UK in sept 2018 on a tier 4 student visa with 2 years duration. But my visa got curtailed to one year. University told me my new expiry date is Feb end 2020 but UKVI had still not sent me a curtailment letter. I had to leave UK by Feb end and yesterday I received letter from UKVI telling ...