Hi Mayra,
I've checked that Wholesgame.com has been online for over 2 years now. However, the owner of the website is using a service to hide their identity. The address shown on their About Us page shows they're located in London, UK while the address on their hosting company is at Scottsdale, Arizona US. I see that their site accepts safe payment methods such as PayPal and major credit cards. In case anything goes wrong, you can contact your credit card company for chargeback.
Please remember though that we cannot guarantee the safety of any 3rd party sites outside of SaleHoo.
Hope this information helps.