Semglee gone

Does anybody know what has happened with Semglee insulin ? I went yesterday to pick up my usual 5 pens to be told they could not get any and should ask my surgery to try and source some , I asked them and they told me they couldn't find any and would prescribe me a similar insulin, so I don't know if it's in short supply or no longer available .

I just used up the last of my Semglee this morning and they have given me Lantus pens to see me over until the Semglee is available again , I'll just have to hope for the best .