Once you've paid the 50% up-front fee and sent us your existing documentation we'll start work within 7 business days.
It'll take around 5-10 working days for us to assess your OSCs status and come up with a plan for sucessful (re)submission. This does rely on timely responses to information we ask for.
It'll take a further 10-15 days to get the OSC ready to (re)submit.
Once submitted it's in the hands of the CAA, and unfortunately it's not within our power to speed them up. Applications can take 3-12 months to be approved.