Experiencing unusual USPS label price adjustments?

I think we should all issue chargebacks with our credit card or bank if we don’t have a refund or a timeline for a refund in a few days. I can’t believe almost 24 hours after I talked to their chat support, ZERO has been accomplished. It just seems like they’re trying to hold us off and play dumb because they know that they are super liable if we take legal action.