Makro Online - No feedback

We purchased a dishwasher in September 2017 and it has started to give problems. We have been calling for more than a week and to date we have had no manager or person call us to make arrangement for a replacement. I went on their facebook site and saw so many complaints, and really worried they wont come back to us. I mean are they ******** people or is there a waiting list? What is going on?