[Resolved]  Samsung India — offer and service not provided after purchase

Sir,
I just bought samsung j2 pro mobile phone on 13/10/2017. That time samsung was promoting an offer with the name of 'samsung never mind offer'.in this offer company was saying that some selected models which will be purchase in any date from 21/09/2017 to 21/10/2017 will applicable to get the benifit of the offer and if mobile phone screen will damage any of the reasons with in a year, company will change the screen in just only for 990/- (This offer could also be checked on samsung's official website')

My mobile phone is also aligible for that offer. My phone got damaged accidentally on 20/12/2017. Next day i went to authorised samsung service centre, service centre told me that my phone's screen has been broken and it's need to replace. I told them for 'never mind offer'.
I gave them my original bill, so they asked i'd proof. Their was a little mistake in address of adhar card and mobile phone' bill. So i submitted my phone in that service centre and i returned back to home.

Next day 22/12/17 i went to the shop where i purchased the phone, and told him my problem and asked him to update address in mobile bill. After correction i went mobile service centre on 23/12/17 at about 2 pm.
Then service centre replied me that my phone is low size screen and low budget phone so that company will not approve my claim and i need to pay full payment for repair.
When i contact samsung customer care, they told me that my phone is aligibl for the offer and ordered service centre to give me the benifit.

After ordering, service centre took my papers and said to stay and wait. I was watching that my paper was in their drawer but they were not working for me. After some time they returned my documents back to me and told me that my claim not approved by company.
When i asked the reason then one of them got angry on me and said to pay full amount for repair (2400/-) in except of 990/-

I don't know when company was promoting their offer for that model then why i didn't get benifit of that offer.
I was also there but i didn't saw any thing that they did for my phone.
After inconvenience i paid full amount to get my phone back. But i want to know why company is # and showing fake advertising. They are making fool to show that offer.
If i purchased a phone of 9000 then it's everything for me so how service centre and mobile company says its low budget phones. I want to know why company listed my phone model for offer, and why they didn't give the benifit. Am totally got mentally and economically disturbed.
Please do something for a company which are making foolish with this type of harrangement

I attached phone bill at purchase time of phone, job card sheet of service centre and payment slip for repair work