As description. I purchase a battery circular saw in December of 2025. I used the item for the first time at the end of January to make one cut. I then came to use the saw in April and it did not work> i charged the barrerites but it still did not work. Where do I stand in regards to getting a replacement or my money back? I have tried to contact the seller but the are ignoring all my messages. any help would be much appreciated.