Nice concept, app works very poorly

I used this app for a business line because it was the only one that provides a number in my states area code. The app works really badly and there is no customer support. Here are some of the problems:
1. You cannot answer calls when the phone is locked or inactive; opening the phone will drop the call, which is really bad for business. The company just says to have all your calls forwarded to your main line, which totally defeats the purpose of a second line.
2. You cannot save contacts in Line2, which makes it essentially useless for business. Theres actually a page on the app called Line2 Contacts, its just nonfunctional, the company tells me.
3. You cannot see info on recent calls without dialing the caller back, which results in a lot of confused callers who get one-second calls from you when youre checking missed calls.
4. There is no customer support. There is no one to call when the app isnt working right. You can email, and their answer to everything is to make sure youre logged into the app. ?$&?!&&!!

There are a lot of other bugs. This is a great idea for small business that completely doesnt work in its Line2 incarnation. Im trying BusinessCall instead.

Canttinkofanickname about Line2 - Second Phone Number, v9.6