Aug 26, 2016
The scammers behind that website have been using many phone numbers.
The current registration was done on July 25, 2016, only 4 days before you made your post.
Registrar is GoDaddy. The owner hides behind a proxy service that is owned by GoDaddy.
The site is hosted on Rackspace servers in the USA.
=== http://www.whois.com/whois/summerpayday.com
However, the domain name has been in use by someone since as far back as 2008 :
=== http://whois.domaintools.com/summerpayday.com
Whois History 39 records have been archived since 2008-01-01
IP History 16 changes on 12 unique IP addresses over 9 years
Registrar History 4 registrars with 3 drops
Hosting History 10 changes on 8 unique name servers over 9 years
I went to the website, to see what I could see, and all that I could see, was that is was the same boilerplate blather I have seen on other sites that claim to match applicants with lenders.
"Your information will be transferred to lenders and third parties associated with SummerPayday.com."
I could not find a business address on this site, nor a list of any of the 300 lenders they claim are reputable, nor who the third parties are.
No one should ever put any personal information on this website.