Is Thememorybook.de reputable?

Hmmm,

again and again the same with these amateur sellers.

Use only one phone number as contact option, give only one Serious gmail address, also the address on GMaps looks like companies, too, the registration of the domain is still very young, the data about it “hidden” and there are no reviews on reputable evaluation pages – this all cries to “I am sooo reputable”.

You could ask where the goods have to be sent in the event of a revocation, because the provider is inclined to do so. So could be that this has to go to China.