They're so "on top of things" that their website literally expired:
"Website Expired
This account has expired. If you are the site owner, click below to login."
Yeah sorry, there's a certain minimum level of expectation out of a company, and if they can't even bother to act like they exist, then that's typically not a good sign. It's 2024, there's zero excuses for failed receipts, expired websites and more. What that says is "we're not willing to put the time in". Your products aren't your business, your products + the customer's experience are your business. Currently, the customer experience doesn't exist period. As of Feb 19 2024, Horizon BBQ Smokers for all intents and purposes does not exist.
Also re: customer service -- for customer service to matter, again it has to exist in the first place (eg. they can be contacted). Just some food for thought.