Returning My iMac ned help

[Enny5]

Hi guys like everybody here i am returning my Imac i7 to replace it with new one because of yellow urine color. My Imac is week 17 what week should i shoot for. i am on my 6 th day of 14. Can i have them open the imac there for me to check it out? And since i am returning the imac can i get them to give me some memory upgrade since i am returning this and i am not happy?

Do i have to call apple or can i just go straight to the store with my imac?

Thanks

 

[jicka]

I returned a week 18 27 inch last week that was really yellow along the whole bottom. I got a week 22 that is almost as yellow plus has the shadowy gray bar across the bottom of the screen I think it is still a crapshoot lol. Good luck I will be returning mine within 14 days for sure

oh and set up a genius bar appointment then just go in they were pretty cool about switching my first one out.