I requested my easyJet Plus discount on 11 March, received an immediate automated email stating they would "respond within 7 days". Sent a follow up email yesterday, received another automated email telling me that "Due to the popular demand of this offer, we may take longer to reply to you. But don't worry, we've got your details and will be in touch with your discount as soon as we can". Received my discount code this morning (19 March), called up the easyJet Plus contact centre to have my new membership added to my existing bookings, re-downloaded my boarding pass and now have Fast Track etc.

As an aside, I'm very much used to using TFW, First Class lounges, fast track, Group 1 boarding etc. I'm surprised how, after just a few flights on easyJet, I've adjusted to flying like the majority of people fly and it's not the end of the world! I'm starting to feel better about no longer having GfL in easy reach, and just buying a flight that meets my needs in the class I want to fly rather than binding myself to IAG.