Sorry for bit falsely information.
Grottobook.com is licensed by mydates LDT, so therefore it is correct that they are trying to resolve the dispute. I thought it was the dating side, "mydates"
But their so-called location is wrong. No company called mydates or grottobook is on the location on their webpage.
In the terms on grottobook.com, it is stated that they sell ebooks, but when I tried ordering, they needed delivery information to my post adress.
They also have 365 days refund policy got valid reason. You haven't recieved the books, not any confirmation on the books (receipt). Neither any answer from them (mails).. THIS IS valid reasons for refund.
You should try call the number with private number, an Check if the line is open..
The owners is Latvian registered in Edinburgh as extra information