[Ordnael92]

Yes tell them you received everything except the sunglasses themselves.

^ This.

The EB has a very high success rate against Ray-Ban using that approach.

For example , If I order Rayban stories which has a full packaging with plastic and box , do I say that I opened the packaging ( charging case ) and the glasses weren't there or I simply say that when I opened the delivery box nothing was in there ( no charging case , no glasses , everything ) ? The Rayban Stories weight 49 Grams ( just the glasses) so with charging case and everythng that comes with it , it should be 150 Grams I think.

As far as I know, Ray Ban Stories are quite heavy when taking the charging case into consideration. You might claim PEB on the sunglasses themselves, but they'd become pretty useless without their charging case and I haven't happened to see any sold separately online (if one loses or damages a legitimately owned case, he's told to claim warranty - something you couldn't do).

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I wonder - has someone tried this with custom prescription glasses?

Yeah, some people have succeeded in that.