PATHETIC Service from SAMSUNG

I'm having problems with a 15kg Samsung washing machine I bought last year. They have sent a technician 3 times to fix a noise issue and twice to fix were the machine lives streaks of dirt on clothes even after rinsing. They changed the filters and the problem still persisted. They said they will come in and change the drum. However I advised the shop that I would rather have a replacement as the machine has less the 50 washes and is giving me problems. House and Home were I bought the machine said I must tell the Samsung technician when he comes not to repair anything but to process a replacement or refund.

When the technician came to change the drum he said he wasn't aware that he was meant to process a refund. He then said we must use hot water. Which we refused to do. He said he will escalate the issue. 2 days later a manager from House and Home called and said they is nothing wrong with the machine and we must start using Aerial auto liquid wash and not OMO Auto washing powder. This doesn't make sense as I have a Samsung 13kg machine which I have been using for the past 10 years. It's never been repaired. I have never used hot water or Aerial liquid . It still washes better than the new one.