Contact/support only provided through Reddit and a contact form, no information on the company providing the hosting (other than "Mango Mail is an American comp

Contact/support only provided through Reddit and a contact form, no information on the company providing the hosting (other than "Mango Mail is an American company based in the state of Florida."). Domain name with privacy protection. All in all, this makes everything seem like a hobby project rather than a serious supplier. What's your postal address? Company registration number? The pricing model is nice, but the basic 'serious supplier' components would really need to be addressed before I'd consider switching.