My application is successful
. Thank you immigration board for all the guidance.
My experience regarding booking super priority and biometric as follows-
When I got to the pay section only standard service was available so I kept logging in few times still the same. So I logged in exactly at midnight ( as suggested in this forum) super priority option was shown. So if you want super priority then waiting until midnight most likely pays off.
And regards to booking biometric. It was tough to find any slots within few days or in a week, not just locally but even hundreds of miles away. Anyway, I kept looking on all possible locations every half an hours, no luck. I wanted to do biometric asap so I sent enquiries on meet and greet option where the cost is £275. After few hours I got call from ukvcas and was offered date for next day. I booked it. So if anyone who is willing to pay and want biometric date soon then going for meet and greet could be the one where you are likely to get appointment next day.
Best wishes to everyone who are waiting decision or planning to apply.