Poor customer relationship - no feedback on complaint registered.

On 8th Oct I submitted a complaint to Gromor regarding their poor sifting quality on a lawn dressing I had purchased from a nursery. There were unacceptable lumps in the bags. I attached photographs as proof. I would have expected some kind of response from them acknowledging the problem and any remediation to avoid a re-occurrence. To date not even the courtesy of a reply. Very poor customer service from a company I have always rated highly. A certain "Bryan" refers.