I can tell you as a mother of a call centre worker they are very tied to what they can and can't do, so they are very unlikely to be able to flag you up to a senior level unless it's a big problem you have.

I let a lot go when dealing with call centre workers, I know first hand they have a big workload and often face abuse from those who are frustrated, they are usually trying their best. Great tip from Key tones to end the call and call back if it isn't going well.