As I wrote, your only real "recourse" is through your legal system. In the US, this would be seen in "small claims court" as a lawsuit - and then only if my attorney advised me that there was every likelihood of prevailing. According to Wikipedia,
...
Serbia has a typical civil law legal system.
Law enforcement is the responsibility of the Serbian Police, which is subordinate to the Ministry of the Interior.
...
There may be violation of Serbian Laws, but only an attorney or the Police could tell you.
If it were me, I would try first going "up the chain of command" in that AASP's management ladder - it may not bring satisfaction, but you may get lucky and find that the company's best interest would best be served by having a 'satisfied customer' - at the very least, you could have the opportunity to voice your grievances (and lawsuit plans, if that is what you decide) to a decision maker rather than a customer contact 'front liner'. I would try to talk to no less than an owner myself - being only as forthcoming as necessary as you climb the ladder.
As for Apple... I personally would take a parallel path...
- Call the Corporate Office and tell the 1st responder what you want and ask to be transferred to the proper department - write a "script" of what you want to say to the person whose responsibility this falls upon - finishing with "I will send you a letter with all the details that I know"
- the proper dept.and person will then give you what "ATTN: Proper Department - Proper Person" to put on an envelope;
- Write a "carefully crafted" letter to Corporate with a LARGE "ATTN: Proper Department - Proper Person" on the envelope
Corporate Address
1-(408) 996-1010
Apple
1 Infinite Loop
Cupertino, CA 95014
**ATTN: Proper Department
Since Apple's business dealings will never be made public, you may never know what Apple actually 'does' about this (if anything), unless they agree to inform you - OR - you periodically monitor their inclusion in Apple's "Locate" service - Apple - Find Locations - Country Selector
best of luck
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