Update by user May 06, 2020 They called me after Tera put in the request and they did send me a UPS label to send the sensors back to them. Original review posted by user May 05, 2020 Type 1 diabetic 40 years and 1st insulin pump. The pump arrived to my dr office on 3/31/2020 and with the COVID19 issue the dr office did not have the trainer available to train me on the device until 4/24/2020. I started the pump on 4/24/2020 and then started the CGM on 4/27/2020. The CGM is horrible, the adhesive bandages broke out my skin, the glucose readings were not even close to my actual readings and the device wanted me to calibrate many more times than every 12 hours. It was not easy to insert and I just do not like it. I was finally sick of the device and removed the CGM on Saturday 5/2/2020 after less than 1 week. I called Medtronics to get a return authorization for the 3 unopened boxes of Guardian sensors they sent with my device. I was told it has been over 30 days so I am out of luck. I am so angry that with the COVID19 they do not understand that I could not get trained on the pump until 4/24 because the trainer was in isolation for 14 days and this was the 1st available training time. The sensors on their website are over $600.00 per box and they are just like....oh well, sorry. I like the pump but cannot believe with the pandemic going on and the stay at home order that they are not allowing a brand new customer time to get trained. I do not like the CGM and when I spoke to someone after customer service by the name of Tera she was like you need to try it for 30 days before we would even issue a refund.....what...after 30 days you are out of luck. She said she would put in a request for a refund but that is all she could do....she basically could care less about the $1800.00....it is not out of her pocked. So if you have had good luck with them, I am happy for you, but for a new customer with what is going on in the world right now I cannot believe how they are acting.