Request for Trial Extension for HTTP/API Task Assistance

I am part of the cohort-12-artists. The last task is to setup HTTP/API. Unfortunately, I am not able to finish this task. I get an error "Upgrade to Explorer to unlock this feature! HTTP API Integrations are only available on Explorer plans or higher.". I tried to reset my Trial but get this error "Oops! Seems like we can't extend your trial You might be on a paid plan or your trial has already been extended once." Could I please get another extension, so I can do the cohort task?