I'm really sorry to hear that. I would speak to Medtronic and make sure your order is prioritised for when they get stock back in.
In the mean time, do you have insulin pens as a back up? If not I would get your prescription request in as soon as you can. You might have to switch back to MDI temporarily, but do keep trying to speak to your DSN.
I got some from them today - they didnt have the usual length of tubing but the needle size was the same amd we.ll just have to make do with shorter lines for a few months