Should I get a refund?

I listened to my friend who bought a nice Tv off facebook market and it’s been in good shape for years. I bought one for 58” for $100 and they turned it on and it was working perfectly before I got it. I thinks it’s a 2016 or 19 Model but this month I the noise stop working and it’s only been 3 months like I see why they were trying to sell it… lol it’s just 100$ but still she claimed it was working before and won’t refund me Im talking to Cash app about this and they will make a decision soon.
Should I get a refund?
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