Du Bout Du Monde

I have a bad experience with this company. I bought some items at the Du Bout Du Monde shop in Frankfurt (directly, not by houzz.de). As I'm not EU resident, so they suggested to send items to my country and to refund me the tax after that (it is about 150 Euro). After I got items they "forgot" to refund me the tax. I sent them some e-mails to remind, I called them many times (not only to Frankfurt, but to French main office too), and every time they composed different excuses and promised to refund me soon. Every time they had new reason of delay. Finally I understood that it is not possible to get anything from them. Their promises mean nothing. They are just cheating customers.