Issues After Account Upgrade: Row Limits Inquiry

Hi, we recently upgraded our account yesterday. We were on a grandfathered plan that let us have 10 million + 1 million rows. We moved up to the $800/month plan from our old $349 one. We're seeing some errors about row limits now, and we're wondering if it's because we upgraded from that grandfathered plan and maybe lost our extra row allowance? Could you take a quick look ASAP?