institutechildrenslit.com review: Bad customer service 1

I signed up for the Writing Aptitude Test on the website www.institutechildrenslit.com. I thought it was for small fee, but they charged me for $35. I tried to call them, but their phones are switched off all the time. I sent several emails and asked to return money, but no one responded me.I wonder if there are other people, who had the same experience. Can you provide any good piece of advice?