I bought earrings from the brand G★CO (G*CO) at the Cleary Park sterns in Cleary Park on 7 January

I bought earrings from the brand G★CO (G*CO) at the Cleary Park sterns in Cleary Park on 7 January. The earrings came with studs, but within one week the studs had already faded. I also bought jewellery for my daughter (different items that included studs earings and a chain), and I noticed the studs are different in quality, which makes it seem like cheaper studs were used or changed. Since wearing these earrings, my ears itch, which is very concerning. I am wearing them now, and the quality is disappointing.