-Which website did you use to file I-131? It seems you used a fraud website.
By the way, if your I-131 filing is advanced parole (AP) based on pending I-485, you don't need to pay I-131 filing fee by using paper-filing, not need e-filing in this case..
The following is the correct website for e-filing I-131. I-131 filing fee always $360 (if not for I-485 based AP), no matter you file it online or by paper-filing.
http://www.uscis.gov/e-filing-i-131