SHOCKING AFTER SALE SUPPORT

I am extremely disappointed in the after sale support from Samsung!! We purchased a number of Samsung Appliances in the last 3 years and both times having issues it is an absolute nightmare to just speak to the correct department, they never call back and when you do get through they refuse to assist you if you are unable to provide a serial number even though you have the proof of purchase!! my washing machine that is a year old has just packed up and the door is locked unable to open. In trying to get Samsung out to assess I am told they cannot assist me unless I give them the serial number that is inside the door that I am unable to open after explaining to them numerous times they then proceeded put the phone down in my ear as they will not assist me!! this is honestly shocking call centre service and I will never buy another Samsung appliance again!!