Sorry to hear that about your new mower.
On a side note. Check the fine print on your warranty. I know a guy who bought a Crapsman, and it had a lemon clause. He had nothing but trouble, and they gave him the option of refund, or exchange.
The dumb a$$ went with a exchange, and again, nothing but problems. BUT this time he was stuck with it, as it's a one time offer for a refund.
If you're having that not so comfy feeling, may be an option.