Nokia India — few month old nokia 8 speaker not working suddenly

Address:

Purulia, West Bengal, 723101

I have purchased a nokia phone from mohan electronics 1st February 2018 but from 1.5month suddenly speaker was not working I had tried to complain over phone mail but don't get any possitve feedback several times they said send to service center but I was not ready about that my new phone why I'll go for repairing but they need job sheet no but last 13 days ego I had submitted my phone to service center and provide my job sheet no over mail but again not get any response & service center said that after 10 days you'll get your phone because they send to company but after 13 day I was call then because they don't have minimum courtesy to give me feedback because already delivery date was mentioned that job sheet copy forget it but when I was call today they said spare speaker was not available till now after get this they will repair my phone but why I'll accept this kind of miscommunication and why I'll receive my phone after repairing then what is meaning of warranty, but one of big company made a cheap phone with the high range and they don't able to provide service, so I already given many mail to Nokia mobile that I never receive my phone after repairing, give me my money back or replace my mobile otherwise I'll take my phone .