Hello, and happy Saturday!
Doing our own billing was a little controversial in the beginning, and I’ve wanted to write about it for some time:
I’m sorry we haven’t made any public updates recently; we’ve spent the last couple of weeks working behind the scenes.
Enjoy your weekend 
When you make a call, send a text, or use some data, we get a file with the record(s) (a ‘batch file’) about 60 seconds later. We then print it out, sharpen our pencils and figure out what everything costs, before faxing it to our server so it’s available for you:
One of the best things I’ve ever read in a blog post ever 
Luckily for us, the Ts&Cs were ominous and raised some red flags, and the night before we thought “Heck, why don’t we just build the thing ourselves?”
Much kudos for this. If only this happened more frequently…
I hadn’t thought much/anything about the complexity of telecoms billing so thanks for the explanation. Zevvle deserves much success with this can-do attitude.