Hi Mark,
I’ve extended your Certify DNS license key for 6 months, it’s not a free service because it costs us to run the multiple servers + various cloud services per month to host and manage that service. I can’t seem to find a thread where I recommended Certify DNS to you but please do point me to that if you can find it as well as I’d be interested in knowing how I phrased the advice to you, in case I gave the wrong impression on costs.
The last thread I can see on the topic was for Namecheap and you said you’d got it working using the non-deprecated Posh-ACME version of the provider: Certify SSL Manager - Renewal Failure Notice - #5 by webprofusion