Allied Digital Services Field Service Engineer (FSE) interview questions

Initial call was done by HR, with no insights on Client, salary slab or anything about Visa status. 2nd round after couple of days, answered 100% technical questions, cleared it. 3rd round with client, it was supposed to be 8 people in interivew, there were 3 people, cleared technical interview. No 4th round, they sent in documents to complete onboard, no information on salary, no information on visa nothing, absolutely nothing. On politely following up with the recruiter 5 times, he would reply once with answer to one question only. The excel sheet they sent to compelte onboarding, had UK based information, while I am based in ireland. They have taken my personal details , like passport.