Why did my online store suddenly close and how can I reopen it?

Mine was also shut down—this Tuesday marks four weeks since they closed it. In the meantime, I’ve contacted their support countless times and got similar answers every time: they’ll escalate the issue, they’ll prioritize the case—but how much longer are we supposed to wait? It’s extremely unprofessional. We’re even considering taking legal action because we’ve invested resources into this business, and now it’s all gone down the drain.