Happy to help review whether or not a trial extension will be possible. In order to review your request, I will need to verify the store via email. If you can reply to my email titled "Shopify Forum Support" then I can take a look into the account to see if I can add additional trial time.
I can not verify your store through a public thread; however, I do see that you have followed up on my email. I will reply there with an update on your request.