Wasting my time with their [Edited] service

I was about to leave because xfinity's internet bill has gone up recently. The staff grabbed me and offered me the conditions to offer a better offer; move me and my husband's mobile carrier to xfinity. But my husband informed them that his current phone is not compatible with xfinity, and their answer was they themselves "can work it out." But when I actually decided to move the carrier, my husband's phone ended up not compatible and they suggested him buy a new phone. Are you kidding me? I deactivated my phone to move the carrier, and after hearing that response, I just decided to keep the original one. So I asked them to activate my phone again. They asked for the code on my phone, which I couldn't get a call or text from, and I couldn't solve this problem in the end. I struggled with them for a long time all day and got told they had a system problem, so I despaired. I asked them to call me again tomorrow, but I don't have a ACTIVATED phone. It's a service I really don't want to use.