2018 crf450r (well nut problem, CANT CHANGE OIL) HONDA/ ATTENTION: BILL/CARLOS

I just got a 2018 crf450 2 weeks ago. I rode the bike one time. I tried to change the oil and the well nut holding on the skid plate is spinning and I am not able to take the skid plate off. Therefore, I can not change my oil. If I try to grind the head with a small grinder the skid plate will melt and the rest of the bolt will still be stuck in the nut. I could remove the bolt after I grind the head but then the well nut will still spin if I put a new bolt in. Which means the well nut should be grinded off and will need a new one, therefore, half the well nut will be stuck in the frame and the bike is 2 weeks old... HONDA email me, I spent $9,000 on this bike! ATTENTION: Bill/Carlos