Diabetes Care that Doesn't

I use a Freestyle Libre sensor supp**** by Abbott. When the sensor works, it's absolutely great. Unfortunately, when it doesn't it seems to be impossible to get any assistance at all. The sensor comes to me via CDE Pharmacy.

I have sent two mails to Abbott and one to CDE Pharmacy today and have had no response. It's not as if this isn't urgent as I now have to resort to finger *****s while the device I've paid for is unusable.