I upgraded my insulin pump to 770g. Was told I was approved and told mewhat my out of pocket will be. I asked them SEVERAL times about " being approved" because I was switching jobs and would be having a lapse in insurance for 60 days ( I bought cheap coverage in case I needed a doctor or er visit so it would be coveribg). Well they dragged their feet submitting to my insurance company and it was ultimately denied. They never notified me. I went in to my acct to order supplies and saw a bill for over $12,000. So now am trying to return pump and transmitter for 670 g, which I has andxwell paid off). Got a call and said they were getting ready to send the pump. NO TRANSMITTER. I no longer have my 670 g transmitter bc it was nit compatible with 770 g. I just want them to make me whole. There is a " Buffy" who is an executive who is useless. After the dust settles I will be switching to a T slim pump. There are other insulin pump companies. This is how a mutly billion company treats a customer of 23 yrs. BUFFY IS THE WORST!!!! Date of experience: July 28, 2023 Edit