The lancer doesn’t pierce my skin, even at level 5. Can’t understand the readings. No explanation on what a GKI is, and if a 20.28 GKI is good or bad. Tried the test drops for ketones and glucose, but no guide anywhere on the box showing what is in range or out of range. When calling customer service, you get voice mail and no actual person to answer the phone. Directions in the book are so small I had to use a magnifying glass with my glasses. I want to return this keto mojo, too much hassle and problems with the device and the lancelet. Oh, when I did get a person on the phone (finally), his suggestions was to go online for questions. I had more questions after going online. How do I return this back?!