So you registered your domains with this host... so the host owns these domains? Because they are "redirected", as you say, at DNS level.
If not, the host is not responsible for this.
Searching for www.travel-rates.com A record at a.root-servers.net [198.41.0.4]: Got referral to D.GTLD-SERVERS.NET. (zone: com.) [took 37 ms]
Searching for www.travel-rates.com A record at D.GTLD-SERVERS.NET. [192.31.80.30]: Got referral to ns1.sedoparking.com. (zone: travel-rates.com.) [took 26 ms]
Searching for www.travel-rates.com A record at ns1.sedoparking.com. [74.208.13.27]: Reports www.travel-rates.com. [took 13 ms] Response:
DomainTypeClassTTLAnswer www.travel-rates.com.AIN600
82.98.86.162