Faulty Samsung Microwave

Good day

2020 I bought a Samsung microwave which last year late gave me an SE error. When I took the microwave for repairs at Samsung Customer Service Centre in Boksburg I was told the microwave was not covered because of water, when I argued that the microwave is warming up food which then produces steam, then I was told the microwave had been opened which to my knowledge never happened until it was taken for repairs to the above-mentioned store. I am so disappointed by wasting my money thinking I was buying a quality product from a well-trusted brand. Precious Tseko was so rude and unprofessional in her responses.