Issues with Samsung Washing Machine

I have had many issues with my Samsung washer dryer machine. It was purchased last year in February and since then has stopped working 4 times. It consistently provides the error code of 4C which is related to issues with water in the machine. We have checked the water supply many times and it is fine. A technician came to repair a pipe and exactly a month later we are having the same issue. I cannot understand as the part was replaced a month ago. Each time we have logged a call it takes +-48 hours to review the issue and another few days to get a technician to come to my house and see the fault, after which a new part has always had to be ordered which takes another few weeks to arrive. All in all - we sit without a washing machine for a few weeks and have to have our clothes washed at family. It is incredibly frustrating that a machine that is not even 2 years old has stopped working for the 4th time, constantly with the same issue that was supposedly fixed the previous time. I cannot believe a month later we are sitting with the same issue and no machine. I also do not understand how it takes so long to have the issue fixed and dealt with when it keeps happening. I am a huge supporter of Samsung and all my appliances are Samsung but this is ridiculous now. Surely if the issue keeps happening it is a faulty machine and Samsung should replace it, rather than spending money each time to fix it until it is out of warranty and then we must pay for the repair each time.