Requisition to PO Assistance

We are on Epicor 9.05.606.

We entered a requisition for other type of expense but the part number entered for two of lines were the same but with different prices. When the PO was generated, it combined the two lines and took the price for the first line entered. Please help on what we could of did wrong because they should have remain two separate lines due to the pricing being different.

Any ideas???