Application Type: FLR (M) First Extension within the UK.
Application paid and submitted online: 9 Jan 2019
IHS paid: 9 Jan 2019 ( IHS was £600 until 8 Jan

)
Supporting Documents: Scanned and uploaded online 2 days before biometric enrolment.
Biometric Appointment: Croydon Sopra Steria (extremely helpful and friendly people). Free appointment.
Biometric Enrolled: 18 Feb 2019
(Yes, long gap. I was under the impression that I could enrol biometric at any later date after online application and wasn’t aware of 15 working days limit.I booked an appointment after online application submission however chose an appointment date for a far future date matching my husband’s annual leave so that we both could attend the appointment together. Then I was sent a reminder after 15 working days that I now had 10 working days to enrol my biometric.Luckily 18 Feb was within this 10 working days limit.)
Visa expiry date: 11 March 2019
Acknowledgement Receive: Absolutely none!
Additional Documents: None
Decision letter received: 10 April 2019 via email
(I kept waiting for the postman to drop a letter all this time

)
Date on decision letter: 10 April 2019
Decision: GRANTED
BRP received: 12 April 2019
Total time taken after biometric: 7 weeks 3 days
Good luck to everyone waiting for a decision.