Adobe wont activate- Invalid serial number?

Question

Im confused. I bought CS5 extended from a seller on Ebay, when I tried to use it, the box came up "invalid serial number". I can do a "trial for 30 days", but apparently thats it. The box was sealed from Adobe, has the genuine Adobe sticker, its all legitimate.
The online chat was useless with "Umesh". He never answered how or why this happened, kept skirting the issue telling me to get a "valid receipt" from the seller. Shouldnt an unused, unopened, never activated product work? Its going to be a real hassle going through ebays buyer protection since Ive opened the box now. Adobe can just "invalidate" any product they wish anytime?

Answer 1

I bought CS5 extended from a seller on Ebay
Unfortunately, that usually bodes badly for the ability to Activate your software.
While I feel that there might be a very few legit copies of Adobe programs on eBay, the vast majority seem to be bogus - pirated - hacked, or just an excuse to get one's credit card info for later use, or resale on the black market.
The box was sealed from Adobe, has the genuine Adobe sticker, its all legitimate.
There is a lot of bogus packaging out there, and some years ago, even certified Adobe resellers were blind-sided by pirated copies, that looked perfect, from China.
Contact the seller and demand either a refund, or a working S/N.
Good luck, and hope that you DID buy a legit copy, and that the seller CAN provide you with a working S/N.
Hunt