Manti pumps poor service

I bought a LEO submersible pump from Manti on Saturday as I thought they will give expert advice. The sales person sold me a LEO pump which was faulty. I went back on Monday to return it where the sales person said he can not exchange it I have to buy another one. A Full R2000 in the water. Please be very carefull when buying from them. They know how to get out of a warranty.