Hi guys sorry for delay in my reply but as I wasn’t getting help here I unsubscribed from thread.
I now have them working. Go to the twitter cards again and select standard summary card, enter the details from one of your blog posts, filling the required fields.
When you go to validate and apply use the blog post URL and once validated you’ll see a link to valid your home page, click that.
It worked for me and I was approved within minutes after wards. 