It's already difficult enough to solve such problems in one country. But seeing the lines are international, fixing this is quite impossible. The best thing to do is simply wait and hope it'll be magically fixed someday.
Uhm no. You have to find your MTASA serial, not your GTA serial. Download this application and unzip & open it. Press the left button and your serial should appear.
I'm not following what this is about anymore.. but there's still no need to create multiple topics. Stick to 1 proper topic and give us some time to look into it. Locked for now