Sectigo SSL Certificate Reviews

This is the 2nd time I have renewed my EV SSL certificate from Comodo. The initial purchase took some time for validation. I waited too long to renew the second time, but it still took many days to renew. This time, I was prepared and purchased my renewal 2 weeks in advance. 10 days in advance I initiated the renewal. I heard nothing back. Eventually, I received an e-mail asking for a file to be placed on my website. I already had this file in place, and I told them so. They did not respond for 3 more days, even after attempting to e-mail them back again. Finally, they asked to verify me via phone, I gave them hours to call me, and, 3 days later, they had not even made an attempt. The 4th day, they said they would call me before 5 pm EST, but they did not. I finally contacted them via live chat. The agent was slow to respond, and it took 90 minutes to have a 15 line conversation. Fortunately, I was able to get them to call me to verify. I am now waiting for UK business hours for my certificate to be generated. I may spend the extra money next year and move to a different company for my SSL needs. The loss in business from my SSL being expired is just not worth it.