Bad after-sales service from Decofurn

I have an issue with this company's after-sales service.

I placed an order online and everything was delivered within good time and when I setup my barstools I realised that they had given me incorrect legs for the one.

I then called and logged a complaint and was assured, via email as well, that I will receive the correct legs within due time and they apologised for the mistake, which I was okay with because mistakes happen.

This is now 3 weeks later from the time I was promised feedback and I get nothing but silence/empty promises when calling. Very disappointed in how they handle complaints in general.