Ok, I keep get this annoying message every time.
I followed the steps, and when I perss on the "Call me" botton I get a message that the version is too old.
Alright, I updated it to the newest (downloaded from their website, after I've seen that ppl here said that it's ok and working).
Then. when I press on the "Call me" botton, it always give me the message "It looks like you client has been modified. Please download the latest version from our website." - althrough it is the newest and I've downloaded it from their website indeed!
It also mean that somehow it detects that appguard had modified it although it should"t and I see that it didn't detected it on your mobile... :/
Please help me, I dunno what to do...
P.S. However, I did managed to get it work on my computer :/