Accenture India — delay in sending offer letter

Hi, i would like complain about the recruitment process of accenture. I attended interview at accenture on january 16th, 2020 and cleared all the mandatory rounds and even submitted the documents also. My candidate id is c8431513. And again i got call on 14 february 2020 that i got selected and they are releasing my offer letter. Status in portal got updated to technical/task assessment from the last 20 days... Tried contacting the person through mail but they didn't reply back. This is highly disappointing and not expected from a company like accenture. I request you to resolve this issue.