So called “silver “jewellery”

I bought a pair of silver earrings at the lovisa blue route store. I have been wearing them for over a week only to find that they are not silver and are turning green and the “silver” is peeling off. This is not acceptable as the silver jewellery does not come cheap! I am extremely disappointed Lovisa! What a waste of money and embarrassment for me as someone had pointed out that my ears and earrings were green!