Capgemini Senoir Software Engineer interview questions

I don't how to describe the process as it confused the hell out of me. I went through 1 round nearly 1 and a half months ago. During that 1.5 months I received no communication. Then suddenly I get an email asking me to submit all the documents and IMOCHA test. I completed everything and asked to schedule the HR round. Repeatedly. Still no communication! And then I received the offer letter as well, with no communication about the salary negotiation or the project and the role! I keep asking for clarification but all I get is absolutely nothing!