Who can I contact about cell signal and data strength dropping in area. I work in the area of 71st and Colorado Blvd, Commerce City, CO 80022. The signal bars went from 4-3 to 1-no signal, data has gone from 4G to 1G. This is the same for all three smart phones I have. 1ea Samsung Galaxy S3 and 2ea Samsung Galaxy S4. It bothers me that my Co-workers who have a Samsung Galaxy S4 with other providers are at 4G and 4 bars. The worst thing is hearing them saying I should have go with T-Mobile or AT&T. I've been with Verizon a long time and picked Verizon because of the service and area coverage. Let me know what I should do.