Appalling treatment from MFC

Anger and disappointment is an understatement! I app**** for a vehicle at Hyundai Springfield. I was pre-approved and was asked to submit documents. The salesman had advised me that the deal may get declined because payslip has a rounded off figure, according to the F&I Manager. I’m beyond insulted by their decision as they have insinuated that pay slips may be inaccurate due to the rounded off figures. I had to take off from work to run around to get numerous documents only for them to make me a fool. They refuse to use other proof of incomes which also is not making any sense to me as my name and credit have no issues.