Wrong info, no cash back

Weil ich ein Holländer bin, mein Beschwerde im English.

I bought 4 bar chairs, the info on the site stated that they were as high as 80 to 100 cm. When I received them they were much shorter. Conclusion, wrong info on the site. I complained and asked for a return, no answer. After I threatened with a lawyer I got an answer, with return papers and the promise that they would send me my money back after receival of the return confirmation. I returned it 2 months ago, gave them the info, but still no money back.