I signed for their service last year, $24.95 USD, as a way to build some relevant links quickly. Within a month it was clear that the service was largely useless - it was very difficult to get relevant link partners and the only requests I received were from **** spammers and sites in *totally* unrelated categories (enlarge this, reduce that, kinda stuff)
Hey, we all get taken in this business - I can live with that, but last week they dinged me for another $24.95 via PayPal. There was no mention of a subscription anywhere on the signup (I checked), but I soon realized that there is no way to contact them directly (and they don't answer emails - only automated replies).
The whois record is setup under a proxy, so you can't get a street address - it's just a complete scam.
If you've signed up with them are not using them anymore, go into PayPal and cancel your subscription before the year lapses. It takes some effort to find it (PayPal support walked me through it), but allows you to minimize your losses.