Incomplete Product

I bought an accounting system because my old Pastel system was not compatible with any of their new systems. Acoording to the sales person it was the best for my business. I encountered a problem on my client statements, the payments received would not match the invoices that was paid. I contacted their support services and was on the phone each time for 30 minutes, innitially it was explained to me that I was making a mistake, on the second call however, after a long discussion and the person finding out from smeone else what to do, I heard that on the system that I bought this was how it looked and if I wanted my payments to match I would have to buy another module with that function.<br> This is not what was told to me when I bought this system from them at their offices in Jhb. Now my business is running behind and my clients won't pay becuase the statement is not in the format that a basic statement should be in.