Samsung Washing Machine Extended Warranty Cancellation Request

I bought a washing machine from Nata Vega Samsung Pole Store on November 14, 2023. Even though I initially said no, I ended up giving in to their persistent pressure and getting an extended warranty. On the same day, I realized that the budget was tight and I didn't agree with the warranty terms. I tried to cancel, but unfortunately, I couldn't. Even when my spouse asked in person the next day, they still didn't get a positive result. I went to the store on November 18, and even though there were no problems with the product delivery, the store manager wouldn't cancel the warranty. I'm really annoyed because the doors are closed and I'm trying to find a solution for a warranty that I never even wanted. Can we figure out a solution?