Sales tax charged me on Q renewal is incorrect

How can I contact sales support for Quicken? My subscription just renewed, and they charged me the wrong percentage for the sales tax. I moved to a different state four years ago and the address for my account is correct. However, the sales tax percentage charged is the percentage from my old address. I can't find anything in support or help to address this, and I can't find a way to get to sales or billing support. This isn't a big deal financially, but it's annoying. I can't even find a relevant category for this question!