Bad after sales with Berts Bricks

I am not happy with after sales. I ordered and paid for bricks on a clients behalf. He(client) saw a sample of the brick he ordered and did not want it. I phoned to cancel the order. The sales guy got about 10 messages to call me back, 10 emails etc. When i got hold of them a week later they said I should just put all the detail on email and they will refund me. Till date NOTHING. I do not get responses from them or hear anything regarding MY money.