Tau energy drink website. Not responding

I have ordered as soon as their online shop opened this week. They have a awesome product. I simply can not function normally without it. The transaction went through and I got the confirmation and since then I haven't heard anything from them. They only have a email address on their website and they don't answer me. I don't know what to do. There is no physical adress or telephone number. This is the first time that this has happen to me with ordering at Tau. I so need the product urgently.