Am i in trouble?Hack or Glitch with credits on Multiplayer

After a mission against cerberus with my turian havok soldier on the multiplayer(can't remember which one) i noticed that i had around 1 million and four hundred thousand(and some numbers) credits.Firstly i thought that i didn't won something like this the other times i played, even when i killed more than the others, but then i thought, "Oh, maybe it was because i not only killed most of the enemies but i also did most of the tasks like carrying the objecst, hacking and destroying the "bosses" and maybe i won more credits because of that".

I bought an arsenal pack, and maybe one or two jumbo pack and maybe a reserves pack.Honestly i can't remember that well.

But then i thought that this sudden amount of credits was strange and so i went to search the net, only to find out that apparently when people that are the leaders of the current mission hack the game to win more credits they somehow affect the whole squad.I mean, in some gameplays my game was a bit glitched, with my turian walking to the wrong place or "walking twice" to the same direction and while this didn't happened frequently the times it did was quite annoying.

Now i'm afraid to spend even the credits i win trhough the missions because i won't know which one i earned and which one are "fake".

My question is if either EA or BioWAre can fix this so i can go back to playing and spending the creadits i earned instead of satying in fear of having my account banned for something that i didn't do but somehow reaped the benefits of it?