Pathetic data

Good day, I have been using data with Vodacom since 2015 on my Ipad with absolutely no problems. Last year November I upgraded to a 30 gig package which includes 30 gig night owl data with a router. This package worked perfectly whilst the sim card was in my iPad. Then I ran into a problem with my updates on IOS which needed a wifi connection. So I used my sim card in the router. Ever since I have encountered problems updating and downloading apps. The apps download or update till almost finished and then I receive a message that the app cannot be downloaded. Tonight after struggling for hours to update apps and download from the cloud, I switched off my wifi and dowloaded all my apps like a charm.

Can you please fix the problem ASAP, as I cannot be expected to pay for data and it is pathetic.

Kind regards

Georgia Oliver