I have the Dexcom G5 unit and it works very well but their customer service is the worst. Needed my monthly supply of body sensors. No email to me to generate a reorder. This was in July 2019 after experiencing a delay in the June shipment for insurance verification. Tried online ordering on July 25th but restricted with a note that I could not reorder at this time. Called Dexcom on July 26th and told that my account was deactivated. They would send IT a ticket to reactivate and I'd hear back on July 27th. Never heard back on the 27th so I called Dexcom and they said oh, yes the account still shows as deactivated so they'd send an urgent request to IT to have it reinstated. I was told that I'd hear on July 29th with an expedited shipment schedule. No reply on the 29th from Dexcom so I called again was told the same story that the account was deactivated, its their internal problem and they would send another urgent ticket to IT to correct. I begged to talk to a supervisor or manager so I could get to the bottom of the issue. I was told they could not forward me to anyone. On July29th I researched the management team on line for Dexcom and wrote a letter to their Chairman of the Board, CEO and Operations SVP. Heard nothing from Dexcom so I called again on July 31st. Same story about an internal problem and they would put in a new order to their IT department. Again they would not transfer me to anyone with authority. Through all of these calls I was going through the reorder option on the automated voice mail. On August1st I waited through voice mail until I got to the "stay on the Line" option. I asked to where I was talking and then I wanted to talk to some one in the IT department. I was told I was with the phone bank they were the right department to talk to. After their apology for the past issues they said they would issue a ticket to IT to have my account reactivated. I went ballistic and said absolutely not, they must transfer me to someone in IT because I have been out of body sensors for two weeks and IT is always the holdup. I was told that they had no telephone connections to their IT but could only communicate via email. I said do you realize how stupid it makes you look to think I'd believe they could not call IT. I told them to get of their chair and either walk to drive to IT if in a separate building to get me my answers. At this point I decided to contact my Endo doctor and inform him on the poor support I was receiving from Dexcom. On August 7th my Endo doctor responded that they were working through their Dexcom rep and they had resolved the issues. I was told that Dexcom was sending out an emergency sensor supply overnight and I'd have it on August 8th. I responded that I did not believe Dexcom would do it. I contacted Dexcom late on August 8th and was told that my account was reactivated. On August 9th I contacted Dexcom and asked for details on why my account was deactivated and asked where my supposed reorder of body sensors was. I was told that they could not tell me what the issue with the account had been and to rest assured that it would not happen in the future. I was also told that the reorder department would be calling me on August 9th with reorder questions. I should expect the afternoon phone call. You guessed it. No contact on August 9th from the reorder department. I again contacted Dexcom on August 10th and had to manually place my reorder of Dexcom Sensors. I was assured they would send them out for overnight delivery a Dexcom's expense. I am not confident that I'll see the shipment before August 15th. Sad part is that after contacting senior management at Decom no one has reached out to me. My Endo doctor through their Dexcom rep appears to have the best results so far. Back in February but when I contacted senior management there was at least at to resolve. Again the G5 monitor works. Customer support does not. I will be working my Endo doctor to change glucose monitors simply because Dexcom has proven that it cannot supply their customers and more importantly, they do not care. If I could rate4 the with negative numbers, I would.