Biologic Suspension and Deliveries

I've had a prolonged suspension of injecting my Amgevita due as I was off it for 5 weeks due to a tooth infection and extraction. This occurred just after my last delivery of Amgevita. My deliveries are of 4 pens so effectively 8 weeks supply and they are timed around when I am due to take the 2nd last pen I have in my fridge. It's done like that so I always have a back up pen in the event the one I use is faulty. My biologic supplier has gone online and so I have to log into their portal to select a date on their calendar for a delivery. However it always only offers a 10 day window to do so - based around my 2nd last pen injection date. Since I missed 3 injections due to the tooth extraction I still have 5 pens in my fridge. I don't think it's a good idea to stockpile the pens in my fridge so I called the supplier to discuss moving the delivery 5 weeks later. Well that's where the fun started - the agent I spoke to repeatedly asked if I was wanting to stop the deliveries completely and I hastily repeated I simply wanted to move the delivery window on their website by 5 weeks. I was then told that since their contract is with the NHS they would have to contact my consultant before making any changes to my deliveries. I'm a bit uneasy about the whole conversation and her repeating her thought I wanted to cancel the deliveries. I'm going to call my consultants secretary next Tuesday and explain the situation before I'm possibly erroniously cut off my biologic - fingers crossed.