Please get me the invoices 🤖

AI and vibe coding is nothing new to me, but today I finally gave vibe reverse engineering (or better said, reverse vibing?) a try. To scratch an itch I had for a long time: downloading invoices from o2 Business. There are three mobile contracts in two different accounts on my name for various family members. All via o2 Business, as they offer good conditions for mobile plans that not only work in the EU but also in Switzerland as well. The oldest one is running since 2022. Since then, each month I go to their customer portal to download the invoice and the itemized bill. With three different contracts, it’s a pretty tedious and annoying process, as each login also requires a one-time password via email. And I absolutely hate to manually save each of the six PDFs to the correct place with the correct name. It’s already been itching me for quite some time, and before AI got more helpful and cheap, I already tried to automate the process a few times. I tried to reverse engineer the…