Arm interview questions

I got calls from 4 different recruiters from Arm, United Kingdom. All of them called for Senior Software Engineer positions for different teams based in United Kingdom. All of them took first round of interview virtually where they asked various questions like current work, CTC, behavioral questions and a couple of easy technical questions (like which is faster cache or CPU register). I was told that I will be getting interviewed but non of them called again. I tried contacting recruiters but no one reverted. I would like to say that this practice of recruiters at ARM, United Kingdom is pathetic. They will call you, take details and then they never respond. It has happened to me 4 times. So, I would suggest anyone taking the interviews to be very cautious that they simple choose not to revert no matter how many times you call or email them. A very bad practice indeed and I really never want to work for such a company.