A builder, client and supplier of bricks are in dispute about the type and colour that was ordered by the builder. The bricks delivered were as per...

A builder, client and supplier of bricks are in dispute about the type and colour that was ordered by the builder. The bricks delivered were as per the specification. The clients maintain they asked the supplier to change the specified bricks after they visited the brick display centre. They also maintain the supplier acknowledged the change and would contact the builder on their behalf.

The supplier does not have stock has stock of the requested bricks and the builder needs to move the job on.

With reference to the scenario above, in contractual terms, identify the parties in dispute and clearly define the actual nature of the dispute. (approximately 100 words)