I've been with Public Mobile for almost 3 years and I've had no issues until about a month ago. When at home my reception drops considerably. When in the basement I will have 1 bar or no connection. When in the kitchen above ground I will have anywhere from 1-3 bars and will not receive calls or when speaking to someone they can't hear me. I have no idea why and it's starting to get frustrating. The only thing that has changed was that I switched from one PM plan to another in August. I have the Samsung Note4 and no other unlocked phone to test the sim card in (I've been reading some posts). I'm desperate to find a resolution.