Network still dropping all calls forwarding to Verizon

I cannot make / receive calls or messages. At least 10 times a day I loose all access to the network and though it looks like I've asnwered the call it's unable to connect so it just drops when I try to call back out I get "Welcome to Verizon, in order to make this call, you can provide your credit card number] i've been calling for two weeks and have been on hold over [a cummulative] 11 hours.  

I've been into the store twice and I've received a new SIM card updated the network settings, reset my network settings, reset my phone, you name it it's been done and I've gotten nowhere. Every time the network drops or switches towers my calls drop despite only having used 1.5 gigs out of the 20 offered at high speed data. I'm not notified that I'm missing calls and when I check my voicemail there isn't any. But as long as a test call goes through at the end of the redundant conversation they say it's fixed and send me on my way. I work from home And recently I've had a family member pass and have been trying to make funeral arrangements for the last two weeks with out a stable cell or data connection despite being well before my data should slow. The fact that the provider sends me to a place that suggests I provide my banking information is downright fraudulent as I pay for mobile service and do not need to make collect calls. This is worse than the wells Fargo scandal from years past and I will not be scammed into spending a dime past what my contract stated at the time I signed up for services. The inconsistency and service is not only unacceptable but it's hindering my ability to put my brother to rest. Comcast is pushing me to find a public outlet to share my discontent with. I'm becoming motivated to really share and express my concerns that the network provider is a incompetent cellular vendor by purchasing a banner that stretches across the main street in my town hopefully the pre black Friday publicity warns the future consumer from picking such dodgy service and incompetent customer care staff.