You transferred and you were able to access the new profile on date-check.net before the switchover?
You've tried the web form and the phone number (508-794-5008)? At least one person had success with that.
I transferred last month and was able to access my new profile on .net and old one on .com before the switchover, and am accessing new one on .com after the switchover.
That said, it's a week after the switch and there are still not many provider profiles up. 38 in DC, which is probably the most active city, and 409 total.
I'm having trouble figuring out the reason(s) for this switch. Maybe they thought they could increase revenue from provider advertising? If there were more providers some of the social networking features might be interesting to use, but the groups and discussions are pretty dead at this point.
In the end, they might have destroyed their own business with this. I've had my lifetime membership for over 4 years and have gotten my money's worth out of it, so I'm not going to be outraged. I'll wait it out. There's clearly a market large enough to accomodate more than one verification site, so maybe they can overcome this.