Paid via App Store (iOS) but I'm not getting the subscription activated

I've paid via Apple App Store, but I ain't not getting the paid service. So I reached out to Apple due to Dropbox is not providing any support at all regarding to such incident. 

Solution they provided was to refund, so I did. And then I try to subscribe again hoping there was something wrong during the plan activation procedure. Paid again, no service provided again, no dropbox support can be reached again, or...talk to a bot who lead you to bunch of irrelevent articles wasting you hour to read and attempt to fix something Dropbox should be the one who fix. 

 

I believe if you cannot provide basic billing support service and to provide service people paid for, Dropbox shouldn't charge people.