Haven't received certificate for Apache Spark 3.0 Associate Dev certification

I have given my exam on 7/10/2021 and have passed it, subsequently I received my badge after 2 days but haven't received the certificate associated with it yet, its been almost 4 weeks since I received the certificate and have raised 2 requests through the main contact page but didn't get any reply for it and the url associated with it isn't accessible, any ideas whom to contact for the same?