I did the exact same. I used to be a Godaddy customer and had a bunch of domains with them. One day I cancelled some of them, but when I did this it didn't auto-cancel the associated services, as I expected, so they continued to charge me for whois guard, and some other services for domains I no longer owned after they expired.

Godaddy are thieves. I'll never use them again.

As much as I like Namecheap, you can't really say they don't upsell. At least not anymore. Every domain purchase comes with the chance to register premium DNS, hosting, all sorts of guff