@Адриан Димитров
Was it approved by fortumo? it used to take 1-2 days.

Can you resend me login details to database and fortumo page? I found successful logs there, maybe we are pretty close.
I know you sent it to me already, but cannot find it anywhere.

PM Sended.

Final conclusion:

The problem was NOT in the plugin, it was whit the fortumo service being blocked. The support was GREAT! The plugin is working perfect for now. In my case only the jquery conflict left.

- following IPs must be white-listed:
54.72.6.126
54.72.6.27
54.72.6.17
54.72.6.23
79.125.125.1
79.125.5.95
79.125.5.205

- application should go LIVE before testing (For testing: Live in fortumo, TEST in plugin settings), otherwise payment may not be forwarded.

@Адриан Димитров
Welcome, I would just add that:
- following IPs must be white-listed:
54.72.6.126
54.72.6.27
54.72.6.17
54.72.6.23
79.125.125.1
79.125.5.95
79.125.5.205

- application should go live before testing, otherwise payment may not be forwarded.