Samsung Electronics Customer Support Centre

Absolutely Ace Service from Samsung.
3÷10÷12
About a week ago the RCD tripped on the fuse box. After a process of elimination it turned out to be the American style fridge/​freezer (RS21DCNS) 10 or 11 years old. I did the usual and looked up things on the Internet, and tried various things.
The one problem I had a few years ago was that the fridge iced up at the back panel inside the fridge, and stopped a fan moving. Melting the ice solved the problem, but I lost a charcoal odour tablet in the process, but it got working again, but that time it did not trip the RCD.
I disconnect all I could see, but it still tripped. I found a forum which offered various options, but unless you knew what they were talking about then you stood no chance. In the forum was the telephone number for Samsung Custoer Services. I even went to the site and thought I had found the answe, but the advice was to ring the customer services number.
I was then working out the threshhold for the cost of repair against the price of a replacement.
I spoke with customer services, and they took down my details and then said that they would send out an engineer (free of charge). FREE OF CHARGE!!!
I thought yes they would assess then I’d be hit with the bill. Anyway they said I would be contacted by their service centre, and gave me a reference number. Less than an hour later I had a text message from the service centre giving me their reference number. The next day i received a call, and I arranged the visit for my convenience for after 13:00. I then received a confirmation text message. The day before the visit I had another text to ensure it was still convenient for me.
The engineer arrived at 13:30.
He replaced:
HV Kit
Evap Cover
Sensor
Drain Heater
Defrost Heater
Water Tank (the cause of the leak)
Thermo Fuse
I was still waiting for the bill. NO BILL!!!
The water tank must have damaged when it had frozen the first time. He even replaced all of the cables associated with the water intake. He left at about 15:00.
The next day I received a text confirming that everything had been done, and that I would receive a call for a customer satisfaction survey.
How can you fault that service?