One Plus — duplicate accessories by oneplus service centre

Address:

New Delhi, Delhi, 110034

I have purchased mobile –one plus 3t amounting rs 27999/-, iemi [protected] ordered through amazon dated 1 august 17, its almost 3 months using this phone no complaints, no problem no doubt number one product, performance flawlessly and it’s a very good experience using this product a long back firstly i purchased one plus one then i purchased one plus 3t why its because i am big fan of one plus brand and would like to recommended this to everyone and i have a full faith of this brand.
I am not complaining to one plus brand, i am raising my figures on service centre i had a very very bad experience from one plus service centre, i went there for degrade my software to nougat 7.1.1 as i updated my phone to oreo and since then i got some issues, screen not responding at times only.
They change my phone display without knowing me and mentioned on form that “power on with vibration or with backlight but no display” but i have never this issue before and did not complaint related to that.
I am 100% sure that they install local display as there are lots of difference with an originally installed phone display, since then phone camera is also not working and touch is not smooth as it was before.
It’s really not appreciated what service centre are doing they replace original accessories this is really so ridiculous and very cheap and they are spoiling one plus name.
Below is the service centre name and address:-
B2x
B-10, ground floor,
North ex mall, sector-9, rohini,
Near rohini east metro station,
New delhi, 110085.
[protected]

I invested lot of my hard earned money on buying this and want this has to be resolved.
Regards
Lalit
[protected]