I am a bit confused with the Mindtree recruitment process

I applied to Ltimindtree on 2nd Dec 2024. Then i had clear L1 and L2. Hr reached out to me after 1 month of l2 completion. She asked me for expectations and preferred location. Hr said she will release an offer letter that day only. Now it's been 7 days since there was no update on this. I got mail on the 15th April that the documents were approved and same are reflecting in LTIMINDTREE profile. Last Thursday when I checked my profile it showed status as "offered". But I didn't receive any mail not even in the spam folder also reviewed on this.

I tried to connect with HR she is not responding either on the phone or in the message.

What is actually going on, can anyone put a light on this.