Credit Limit not enough to finance 2 phones

I spent over an hour on the phone with a representative planning to transfer my lines over to Xfinity mobile. Got my plans selected and new phones picked out in order to upgrade our phones when we switched. Only to be told that the limit I was approved for was not enough to cover 2 phones. I have excellent credit (over 800) and have NEVER had issues getting financed or approved for anything in my life. I was told there was nothing he could do and any attempts we made to talk with someone the chat was abruptly ended. I did have to unfreeze my credit to do the soft pull so that's the only thing I can think of that would affect this. But also seems to be a relatively common problem. I was told I could try again in 30 days (which seems different than what a lot of people have been told) but I have also seen that a lot of people waited and still had issues with getting the needed limit.

So basically, what's the deal? There has to be someone somewhere who can make this right as you are going to lose customers or not gain them due to ridiculous things like this.

I have spent way too much time on the phone and wasted so much time for basically no one to even be able to tell me WHY I wouldn't be approved or who I could talk to to appeal the decision.