Cognizant — Regarding the Offer Letter for asp.net Developer position

Hi
Recently i gave interview for the Asp.net developer's position on 13th Jan 2022.
HR is not at all responsible in replying or guiding the candidates. After 5 days he is updating my feedback after which also he is taking time to respond he never pickups my call. He told me to fill an online form inspite of clarifying so many times that i have not received any mail for online form submission.He is just throwing tantrums because he is a senior. and not responding to any of my query clearly. I have one offer also but I'm waiting for Cognizant's offer but the HR is not responsible of his work