Samsung service is a Joke Embarasing service

Bought a New Dishwasher 18 months ago approx it is 100% under warrantee - Called Samsung and logged a call call *** this was approx 2 weeks ago - they sent liptronics to us to fix liptronics said Samsung have stated no spares available and they will replace the machine. Why do I not get a replacement in a reasonable time - why do people pass the buck - how do I get this resolved - is Samsung going to step up to the plate or show us all how ****py a company can be - mmm let's see what they are going to do this is not right<br> FYI I have over 150000 rands products in my house all bought 18 months ago !!! Did I make a mistake - let's see