Biz2Credit Python Developer interview questions

There were two technical rounds and I would rate difficulty as easy-medium. Most of the questions were around python(core advanced concepts) and django,problem solving. After clearing rounds company asked for my personal documents and told me that I would be getting a call from their manager as a final managerial round and will get offer letter in same call, but after waiting for few days I didn't received any call, then they told me that manager is busy and then again I didn't received any update and for 2-3 weeks I regularly sent follow-up emails and even called them, they just ignored these all attempts. It just shows how so called "best rated company to work at" are really in true form. They just want to waste the candidates time and nothing else.