Comment by bebna

I use discotel for years now, it is basically a prepaid with automated recharge from bank invoice on O2/Eplus. Thanks to being a prepaid you always got the option to switch you setup via packets every 30 days or 4 weeks (have to check that again, it was a fixed day amount and not based on calander months anymore).

So if I'm not traveling I stay with the cheapest data option for my occasionally otg stuff and on heavy travel months I choose larger packages, because I found myself using more often, for example as access point to notebook.

I also have an Kaufland (Telekom) Prepaid card, that said it would provide basic, very slow internet, for free so that text messages over chat works, bur I don't know if I got the wrong APN settings, it has problems in my second slot or it only works if you top it up regularly, but that internet and rest never really worked, even the account management over the website doesn't really work for me.