Who I have the same questioned this topic

Wish I would never considered Verizon.
I was planning to buy iPhone 12 Pro Max as pre-order. On the beginning of the November I have gotten email from Verizon advertising new phone and super promotions: Buy one and get $800 another one and 250$ as new line visa card.
On the day of the preorder (11-6) I have purchased 2 new iPhones 12 Pro and filled up transfer forms. There ware issues preordering, and I was chatting with rep for over 2 hours. Total bill was 240.50$ for taxes.
11-13 - Ten minutes after I receive one of my 2 pre-order phones, I get bill in my mailbox for $169.43 Bill is for 11/10 - 12/09 (Plan $90, Device1 $50.22, Activation - $20 + taxes) Bill is for 11/10 - 12/09. I spend 4 hours on the call trying to figure out why is Verizon charged for device service plan before it is activated, and still in the mail. All I get from the customer service is: ohh we charge for 1 month ahead.
11-16 - I call in to activate 1 line, getting round around via customer service and finally after 3 hang up calls, got activation department to activate my phone for the first line. 3 hours on call.
11-16 - As soon as second Device arrives I get email with second bill for $499.74 Bill is for 11/13 - 12/12 (169.43 unpaid balance, Plan1 $80, Device1 $49.22, Plan2 $90, Device2 $58.33, Activation - $20 + taxes). I call and spend next 6 hours on hold, finally getting on chat and spending next another 2 hours trying to get first bill and getting only $80 off, due to same billing period.
11-20 Calling to customer service to figure out why do I still not received my $80 credit to account, spend on the call/hold 4 hours, getting to billing, that hangs up 2 consecutive times. When I finally get a person, she tells me that she sees lots of credit on my account and she will call me back on 11/27 at 10 am to confirm that all billing is fixed.....
11/27 - I never receive call.
11/28 - call Verizon customer service. Spend 3 hours on the call/hold trying to see where are my credits. I ask for Manager, they put me on hold, then immediately hand up.
11/29 - call Verizon again, ask for customer service, as soon as I get customer service I ask for manager, they try to resolve the issue but I'm done talking to lower level, got put on hold and hang up. 2 hours on call/hold
12/15 - Get new bill. It has no credits for AutoPay, only 2 credits for second device payment, and my Activation charges still not reimbursed. Calling Verizon customer service. 2.5 hours on the phone, explain the issue to billing. Absolutely rude customer service person states that all my billing is correct and I get all appropriate adjustments. I ask for Manager, he puts me on hold for 1 min, then I get hang up. I call back, spend another 40 min on hold, get billing again, staring ask for manager, they refuse, I ask for appropriate overcharge return, they spend 30 min trying to figure out solution, then tell me that they will transfer to the manager. Finally manager get on the phone call. I spend another 10 min explaining whole fiasco since the beginning, and tell her that $150 is all I'm asking for to return to me for them overcharging and my over 30+HR of calls. She gives me $40 off for activation charges and states that there will be no other adjustments, and that she is happy to have me as a customer with them. I ask about my $250 rebate for new line, and she tells me that she needs to do extra work and will call me back in 2 hours........ 6 hours later... no call.
I have never experienced this king of disregard for the customer.
Since 11/6 I have Paid Verizon $562 for 29 days of service and 30+ hours of Customer service heck on the phone.