Iphone 8 Lcd


I have IPhone 8 from Tesco Mobile I broke the LCD I found local online a company NiwTech  https://www.niwtech.com where they offer to fix the iPhone for me and after they fix it they give me back the old part I give it to one of my friends he found the LCD wasn't Apple it was LG brand when I went back to them I said this is not my part my LCD should be Apple they said Apple never had an LCD brand by them self they use different brands.

is this information right or they swab my original screen with something else?

Thank You 

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