A friend of mine purchased them on my behalf while in Serbia during for summer holidays,after I saw the photos and asked him to do so. Thus,a return is not feasible, much less to send them back and ask for a refund.
Anyway this is not the main issue, the problem is that I cannot use in a design something that I feel suspicious of.
But as they are NOT expensive, they may probably find someone liking them... in Spanish we have this saying: "La suerte de la fea, la guapa la desea".
Thank you for your help.