Replying to Exchanging a broken xbox 360 for a PS3

Last year my brother had we exchange our ps3 for an xbox 360 because of the bigger online play. Everything was fine because I rarely had to pay for the little online cards. So fast forward to this spring, we have a huge thunder storm that actually wipes out our ip adress and all of those codes needed to go online. So I have put in all the codes that i am relatively sure are correct but the online still doesn't work. So my brother has been telling me to just go get it fixed for the past 4 months and finally he decides that he going to buy the new xbox for college. So my question is do you all think that i can exchange this xbox with all of the games in for a brand new ps3?

Sparknotes: The online portion of my xbox wont work do you think i can exchange it for a PS3?

Ps. Dont turn this into a ps3 vs. Xbox debate