@kayeff,
While we are waiting for someone in the UK to respond, I will share my experience. I am in the U.S., and I can tell you that a nurse did come to my house to show me how to administer the dose. I was able to get my medication much quicker than 5-6 weeks. I'm sorry you are having to wait so long. I hope this medication is helpful for you.
Warmly,
Peggy (Migraine.com team)