I am a small construction company owner who does tenders. I bought building material on credit from a hardware with the agreement that I will pay once I am paid. I then asked the owner of the hardware to give me a detailed invoice with quantities and price each for me to see how he arrived at the total but he failed to do so and only gave me the total price. This was after I realized that he inflated the prices.

He has now sent a summons through a sheriff of the court. What is my recourse as I do not agree with the price?

Thanks