Poor quality of an expensive product

On 23 November 2021 i purchased earrings on sterns online it was R1199.00 and was delivered on 26 November 2021.i had wore my earrings only twice since i purchased them and noticed the clear studs was falling off on both earrings on 28 January 2022 i contacted tfg customer care they logged my complaint for refund or replacement of another type of earrings as i explained i made 2 payments already for this item and I'm still paying the account i received cs-597230 reference and was told when its resolved i should call again.half hour later i received message saying its been resolved i called again and spoke to a gentleman who explained to me that i should take item to closest sterns store to me and they will evaluate item and refund or allow me to take another item in its place.on 29 January i went to westgate mall sterns in Mitchell's plain and spoke to Tarron salesperson and explained what customers service agent said to me and showed her the email he sent and invoice for the item.she then made a copy of invoice and informed me she had to book item to be evaluated at the lab which i said was fine because most of the studs was just gone. when she booked it i received message immediately in store with *** and she said that by wednesday she will notify me .yesterday i called when i heard nothing yet from the store i spoke to tarron and she informed me that the lab said its wear and tear.i asked her are they serious? because after only wearing the earring twice the studs fell out and u can clearly see its poor quality as the studs was glued lightly to a piece of white thin sheet which doesn't specify in product specifications .i am not happy with the fact that lab can easily blame customer for wear and tear because they can see product is of poor quality if studs are glued to a piece of white sheet what the hell? if i wanted cheap earrings with studs that just falls out i wouldve purchased from a Chinese store or a normal cheap accessories store i dont expect that of something that expensive . Tarron informed that she can findout from lab what they would quote to replace studs ,which she did and called me today the lab quotes R400 to replace studs which is ridiculous as the same thing will eventually happen again because poor quality i informed her that i see the same product is now R899 and i paid R1199.00 i told her i would collect product today and lay complainant because I'm not going to pay for something that's studs just fall out .she i formed me that product is still with lab and i can only collect monday. i want to be refunded because this is unacceptable.