Photos would be good to help verify the details below. The fake Armani Collezioni suits I've seen on eBay have all used the "Giorgio Armani" and Armani Eagle logo, neither of which are associated with the Collezioni line ("Giorgio Armani" being reserved for the black label line, and the eagle to the lower-end Emporio/Jeans lines). The Collezioni suit I have (which I believe to be authentic, although it was an eBay purchase), and the ones I've seen retail have all used a white square-ish label inside the jacket, zig-zag stitched, marked "ARMANI / Collezioni / Made in Italy" and nothing else (picture attached). In fact, the only place the word "Armani" appears anywhere on the suit is once on the jacket label. The composition label inside the pocket on the jacket references another company, Gruppo SPA
, who manufacture the suits under license for Armani. The pants don't have any text in the waistband at all, but the stitching is done with what appears to be three very fine rows of rubberised (?) thread (picture attached). This was true of the suits in the boutique too. eBay fakes all have "Giorgio Armani" along with the GA or Eagle logo. Personally I'm suspicious of anything on eBay with logo'ed polythene bags or other easy-to-forge packaging materials, Certificates of Autheticity included. Hope the above is useful to you, and that your purchase was a good one.