DigiCollect Backend Developer interview questions

Its nice experience about the interview, 1st round is basics, 2nd round is technical with assignments and final round is HR round. within couple of days got confirmation and happy for it.

Had 2 round of interview cleared both and had HR round regrading salary negotiation ,I agreed with the package they offered but not sent offer letter.When I tried to contact only reply I get is will send you soon.Please don't do this to anyone.