changer.comは安全ですか？

I exchange few times on their website and everything go well. Today I exchange again on good exchange rate, but their system stuck after I send transactions. On etherscan all comfirmations complite, but they send me nothing. I try to chat with them, but 8 hours ago after my hello, nobody answare me (I check Boomtrain chat and he say for "Last active in a few seconds" - this mean there is online operator). I send couple of e-mails to them, but no answare. I ask for refund, but not answering again. I thing they make cheap trick to exchange when eth price go lower, but I need my money ASAP!

***** ***** fake domains redirecting to pay-per-click scam sites ***** NetRange: ***** - ***** CIDR: ***** OriginAS: NetName: OVERSEE-NET-01 NetHandle: NET-204-13-160-0-1 Parent: NET-204-0-0-0-0 NetType: Direct Assignment RegDate: ***** Updated: ***** Ref: ***** OrgName: ***** OrgId: OVERS-1 Address: 515 S. Flower St Address: Suite 4400 City: Los Angeles StateProv: CA PostalCode: 90071 Country: US RegDate: ***** Updated: ***** Ref: ***** OrgTechHandle: OVERS-ARIN OrgTechName: Oversee NOC OrgTechPhone: ***** OrgTechEmail: ***** OrgTechRef: ***** OrgAbuseHandle: OVERS-ARIN OrgAbuseName: Oversee NOC OrgAbusePhone: ***** OrgAbuseEmail: ***** OrgAbuseRef: ***** RTechHandle: OVERS-ARIN RTechName: Oversee NOC RTechPhone: ***** RTechEmail: ***** RTechRef: *****