Hi all. Recently started the close loop with guardian 4 medtronic 780..........I've been using since Sept and I'm now on my 3rd charger....or rather on backorder like evey thing from this company..........anyone else having problems? They have even changed transmitter and still won't work. On top of that I've been with these type of pumps for a nun er of years and now on the 4th cracked pump! Exactly the same place left at the bottom of where the clip goes. I do t overnight the battery and I don't even use the clip. Getting quite peeved at this company. Anyone else having issues???? Anyone else using dexcom with another pump closed loop? I'm thinking of changing when can renew Andrea