Yebhi.com — Not responding, cheating the people (their phone and customer care not working)

I purchased black shoe for my 9 years old son. I clearly stated his age 9 and size EU34. When I opened the box I shocked they sent me EU24 size, immidiately I called the given number on the box, but that number not working. I mailed their customer care mail id how i return my package but no response from customer care.