iphone 5s warranty

Hello, first of all, I have a big problem I say. I am from Romania, Europe, and I have bought an Iphone 5s in September 2014 from Orange (Romania)! I have 2 years warranty! And the first year i know is the apple warranty! Last week I send my phone to warranty, because my screen cracks, like here https://www.youtube.com/watch?v=rzvQ64j7JO0&feature=youtu.be&t=33s ,and on the back, on the plastic part, up, right to the camera and flash! When i turn on the flash light, the light apperas on the left part of that!

And the third problem is the battery! Becomes very hot when i speak on phone or play anything else!

With these 3 problems, i send my phone to warranty! To Orange! In that moment, my question is, The orange Romania is not comppeled to send my phone to apple, and then the apple send my back a new phone?

I know that this is the policy of apple, to give back a new phone, not to repair it if is in the first year warranty! My Orange Romania, told me, they have repaired themself, and don't replace with a new one!

I want to ask, is possible to do that? because in that case, i think my apple warranty is finished! What to do in this moment, to accept phone repaired or what? because if i have another problem in the next future, nobody repair my phone because they oppen my phone, and i know that in my country is not an authorised apple service...

Please tell me what to do ( and sorry for my english)