Hyundai Montana bad customer service, don’t recommend purchasing any car from them!

Hyundai Montana Sales man called Obakeng Mawela please be advised that this sales man misplaced our service plan / motor plan car that is fully paid off do you understand the danger that puts us in, should we be in a position to want to sell the car what proof do we have to show the car was being fully serviced? Can the relevant managers deal with this matter before we escalate it and take it to the SAPS as this can be seen as *****.