Poor service

I've been battling for the past week or so trying to get my washing machine fixed. Get the technician out. Said it's a common problem with this specific washing machine that the "pc board" Mel functioned. So on Monday I make sure from my side we do payment to get the part. Samsung said one day then they will have the part. Told them it must be installed on Wednesday Cuse I work very long hours and that was the only day I had off. I kept phoning for an update. I had to ask what's happening. Every time they put me on hold 5-10min at a time. Lady kept saying no he will come today (30/10/2019) by 18:30 there was still nobody. I phoned once again spoke to a very nice gentleman and he said nope its cool he will send someone Saturday morning. Cool I'm happy with that. Today (31/10/2019) the manager said no Saturday they can't come there's no technicians on Saturday. So but so angry about this. Yet another week with no washing machine. Nothing week of nothing happening. Yet you demand to have the money upfront. We try out best to do everything YOU want and what now.... Yes you say sorry. That does not do my laundry. Sorry does not solve the problem.