As per the recent suspension of biometrics enrolment for UK visas at US Application Support Centres, I wanted to upgrade from normal to premium service to use the New York Premium Application Centre. Do I have to cancel my current appointment to do that? As far as I understand so far, I have to cancel my current application and submit a new one, including the questionnaire.
EDIT: I was scheduled to go to ASC on Apr 17th, went straight to the Premium Centre instead, did not pay or upgrade or anything. They admitted me even though my supposed rescheduled date was Apr 26th. Got lucky I suppose. Proceed with caution.