E-Visa for Azerbaijan [closed]

Instead of getting a visa from an embassy, there is an option to receive an e-visa trough a government accredited tourist agency. The main benefit for me besides faster processing and not having to go to an embassy is, that I don't have to provide my passport before entering the country.

There is no fixed fee, some of the webpages don't even provide information on the fee beforehand (you have to query them by e-mail), some sell the e-visa only in combination with compulsory extras (like a 51 dollar Baku walking tour). I tried one webpage, which couldn't process my e-mail (due to a length validation). After creating a new (shorter) one, I struggled to reduce the file size of the required documents enough to not receive a stacktrace from their web aplication only to finally fail during the payment process. At least the payment is handled by a third party, but I still don't feel particularly happy entering personal information on a webpage, which is programmed in such a sloppy way.

The whole process seems a bit of a mess to me, however I don't have enough time to go through the "old school" visa process over an embassy and also need to have my passport available for a different visa application, so I guess I have no other option.

Does anyone has any experience with the Azerbaijani e-visa process and can recommend how one can get it online? I need a transit visa for 2 days and I'm on an Austrian passport.