Very poor product quality and worst customer service

I have just opened a bakery and opened an account with premier and buying snowflake flour from them. The sales representative assisting me is Nico.

The professional STD brown bread flower that I ordered in November did not produce desired results, the taste was not good and the dough risen in the proover but flopped after I took it out to put it inside an oven. I have used the same product before and the results were excellent.

I informed Nico their representative and asked him to come check the flour for me. He made a lot of promises to come and check. He said the reason was because i didn't mix it long enough, which was strange as I have used the same premix before and used a same method. I increased the mixing time as he suggested but the results were still the same.

This started at the beginning of November. The entire 25kg flour, yeast, water, electricity, effort and time was wasted.

I bought 2 more 25kg bags of brown bread premix. I got the same results. I called Nico again, who kept on promising that he'll come and giving me different excuses for not honouring his appointments.

One of the excuses he gave me was that he was attending to an important big customer of his company

He is now ignoring my messages and is not responding.