Hello @PaulaH254 ,
I'm afraid I'm not seeing any recent cases in your account, so I'm not sure if there's a different account you're referring to, other than the one your Community profile has linked to it. Without the context of the case notes, I'm not sure why you were transferred to Partner support, but I did notice your My Account page is an older setup, so it may have something to do with that. Generally we send people to Billing for that kind of update, but if your account is setup through a provider of ours, rather than directly through us, that would mean that account changes and upgrades require partner support to handle. I'd advise calling back in when you have the chance, and asking to be transferred to partner support so your My Account page and overall account type can be updated.
Regarding the test email's deliverability, I just test sent your email, and it came through right away. If you're having trouble with your test email being delivered to yourself, it's likely an issue of your ISP or email program not trusting it - since it's an unauthenticated email, coming from a 3rd source, being sent to you and claiming to be sent from you. Live sends generally have a degree of authentication, even when the account in question hasn't setup authentication (such as yours). It's a good idea to set up additional authentication for your emails - particularly self-authentication since you have your own domain.
If you'd like to learn more about safelisting, and what it entails:
Safelisting domains in a security system
Safelisting email addresses in an email client or security system
If you're wanting more in-depth, specialized insight on your current deliverability, it'd be worth speaking with one of our Deliverability agents.
Community & Social Media Support