Shocking customer service

I have been a client of 1-grid for more than 10 years. Started with the previous company that got taken over by 1-grid. How they get a 4.7 rating cannot be justified. The worst support ever. When trying to get hold of them you are lucky to be answered in 30minutes. Once held on for 65 minutes or more before someone can assist. Have been having issues with our email for more than a month on 3 different domains. Email addressed get flooded with spam of up to 80 mails per day. While the support person confirmed that my email was fixed, 20 more spam mail came through. I never bought security certificates for any domain ever, but all of a sudden, my security certificates have expired, and I need to buy new ones. They never return any calls and although I understand that their support staff work from home, it is unprofessional to hear the tv, kids screaming and other people talking in the background. I am looking to change to another provider. Good luck for me if the Supervisor is going to call back as promised.