Amdocs Software Developer interview questions

Online Coding test L1 interview L2 interview with onsite manager. 1st HR called me and asked me about my salary expectations and notice period and asked me to give test. I have cleared coding test then HR informed me about my L1 round. L1 round started at 3pm and ends at 5pm. In 2 hrs they covered all C#, SQL, JS questions. I answered almost all questions very well. Then HR informed me i have cleared 1st round and on same day hiring manager called me on phone at 9pm and told me 2nd round will be with Onsite manager. on next day at 9 pm 2nd round started and it is also technical round he asked me to write complex code and asked me to create simple JS utility. This interview also went well. After that horrible silence from Amdocs. No feedback, No results. As hiring manager called me day before 2nd round I whatsApp him to ask my status. He replied me after 15 days that my notice is too long but at the time of Screening i told them about my notice. This was worst part. If my notice was too long why you proceeded further. It really hurts. They wasted my 20 days. Worst interview management.