I can't really say this is much of a deal, considering the company involved, Network Solutions. I ordered a domain through them awhile back and it ended up to be such a hassle.
Here's what happened. I firmly believe I didn't set up the domain for auto renewal when I created it. Still, I found out later that auto renewal had nevertheless been turned on. And once it had been turned on, there was no way to turn that off via account management. As instructed on the site, the only way to turn auto-renewal off was to call them. So, I had to do that.
Once the site came within a few months of it's renewal date, I got inundated with emails, perhaps a few a week, all "warning" about the pending expiration. I changed my email preferences to opt out of their emails, but that didn't stop it. I changed the email assigned to my account and my domain--that didn't do it. Yes, I did email them about it, but that didn't help either. I even started to get phone calls from them.
A few tips if you buy from them: 1, if you can, use a dummy phone number--I know that might be difficult; 2, use paypal if you can and then in your paypal account make sure you turn off any access network solution's might create to your account; 3, use a secondary or disposable email address if possible.
I guess I did not mention above that one of the things they did when I did use paypal is set things up so they could deduct any future fees directly from my account without my having to authorize them. This was perhaps renewal-related only, triggered of course by the auto-renewal setting. But still, it was unwelcome.