Infosys limited — Offer letter

Role: SE/SSE.
I have completed my technical interview at Infosys on 24th June 2021 after that I completed HR round on 30th June 2021. HR told me as we will release your offer letter once the business approval done . On 12th July I have received the selection confirmation Mail . I was waiting to receive my offer letter and I hope to get it. On 22nd July I have received regret / rejection mail .