Red Alert 3 - Serial number is invalid.

[Maxspeed301]

i tried and put in the serial code that's on my origin account and it worked wich is the same as the uprising one.

btw using cnc ultimate collection dont know if it makes any difference

[stroombeer]

I get the same error, followed the indtrustions:

1. Open your Registry Editor - You can do this simply by pressing the start button, type "regedit" and press enter
2. Navigate through NKEY_LOCAL_MACHINE / SOFTWARE / Wow6432Node / Electronic Arts / Electronic Arts
3. There should be a Red Alert 3 folder in there with a subfolder called ergc - Go into that folder - Attention, there also is a red alert 3 folder under just once Electronic Arts instead of Electronic Arts / Electronic Arts. This folder will not have a subfolder!
4. The ergc folder should contain a (Default) value of the type REG_SZ with the DATA of your serial key without any - between the blocks
5. If that's not the case, right click, new / string value, enter as name (Default) and as data your serial code without any - or space.

my serial no, was CORRECT, I entered it again anyway, still correct, stil DOES NOT WORK...

Please ADVISE asap what to do now??