Is Wreni a Scam or Legit Online Store at wreni.com Selling Smartphone Cases

I want to know if Wreni located at wreni.com is a scam or a legit online store. I would love to buy one of the cases on their website but the website looks suspicious to me. The store only has no physical address or telephone number. Their only means of contact is via email. This is why I find it hard to enter my credit card information on a website I do not know who is operating and from where.