I'am writing this letter to inform your office of my recent experience with Costco pharmacy.I'd been filling my prescriptions at Costco pharmacy for many years.i run out of my diabetic pills even though I gave the prescriptions 2 weeks in advance and per pharmacy, they need to verify the orders from the doctor.I went back to their pharmacy 2-3x for those meds but was told that my me never called them back.I requested for a couple of pills just so I can take something and I can help follow up with md.I was not able to go to work that day because I could hardly walk and I needed my neuron tin and of course my glipizide. I'am a brittle diabetic and if I miss a dose of my diabetic pill, I can go into coma and even die. I'am an RN by profession for almost 40yrs and I know what I'm talking about. I'm not asking for a narcotic but a diabetic pill that I need even for a day or 2 but they refused to give it to me. I'm also reporting this to the Pharmacy Board because I feel that with this practice, they endangered my life and if it continues, other people's lives will also be in danger.The meds I requested was also filled in the same Costco pharmacy for many yrs.(apprx.10 yrs).