Shocking Customer Service

I operate a small business with suppliers in Cape Town Durban Johannesburg and Pretoria. I pride myself on prompt service delivery to my customers. Hence the need for a reliable courier service. Specialized Freight Services recently amalgamated with BEX. I placed a collection request from Pretoria on Friday morning. In the normal course the items would reach Port Elizabeth by Monday. I phoned on Monday only to be told that the consignment would only arrive on Tuesday. Today I am told that the collection was denied due to non payment of goods and hasn't been collected. Why wasn't I informed on Friday that the pick up had been denied? It could have been rebooked straight away. I have never requested a collection of goods that hasn't been paid for and I have been dealing with this supplier for many years. Something didn't seem right. So I phoned my supplier to see what was going on. The courier company never went to collect the goods then put the blame on me by saying that the goods hadn't been paid for. this service is unacceptable and I take offence at this dishonesty.