Bad customer service

I have been trying to get feedback on a refund due to me from the 5th of December 2023 and everytime I speak to an *********** agent with no answers. Today I called and a Jonathan had quite an attitude telling me why am I using their services when I verbalised my frustration. He also was arrogant when I said I was going to rate them on social media. He said I can do what I like. People like him should not be working in a call centre when they have no communication skills. He will bring disrepute to your company. I hope Buffalo can deal with him. I will not be using them going forward.