Silver Line Gate Foodstuff Trading interview questions

Horrible experience with this company by attending an interview and it's follow through.. They called me for an initial interview and then a so called trial for the entire two working days - simply checking their vouchers and invoices. It was a total waste for me to spend my whole 2 working day there and loss of pay from my current company and also the taxi fares i spend to reach there.. After all these drama again they called me to meet one of their senior manager and he told that I am the perfect match for their vacancy and I can collect the offer letter next day after meeting again with their another senior person. Again same questions, and kept me waiting there for so long...more than 2 hours at last send me back saying " will inform you if there is any update". If I am not the perfect fit for that position why they wanted to drag me till the 4 th round of interview? It was mentioned all in my CV and i had a long discussion with their accounts manager about myself and my previous experiences... Very unprofessional recruiting and management team. It was an utter loss for me. I lost the money I spend to reach there for 4 days And 2 days salary when I went there for trial Total waste of time and money.