Sub standard - flea market quality products

On 10/12 I bought Monaco LDs rose gold set. After lees than 2 weeks it started discoloring and leaving black marks on my wife’s skin. Is this the quality Game associates themselves?? Then it is a disgrace as you were always known for selling quality products at good price points. Really disappointed that a gift turned into a piece that’s just laying on the dressing table!! This is what you can expect from a flea market and not a trusted South African brand .