Good customer service would honor what your confirmation says and would be less cost for Disney than the negative PR they get when you share your story. Sorry your experience hasn't been so pleasant.
INDEED!! Several years ago, DD and I were booked for 9 nights at POP during free dining. I upgraded our dining to the regular
DDP from QSDP, the CM quoted me a price, and I paid for our vacation (we were only about a month out). I really didn't think about the price; we'd done several iterations of our vacation plan (w/ and w/out hopping, WPFM, etc.), so I had several numbers in my head and knew all were within budget. When I called back to add our flight numbers to the reservation and schedule Magical Express, the CM on the phone said, "OH, look at that! We didn't charge you to upgrade your dining!" I kind-of gulped and said, "OK, we want the upgrade, what's the new price?" The CM was overly-apologetic and said no, they quoted us a price to include the upgraded dining, that we paid, it was their mistake, etc, and no additional money was due. Now THAT is customer service! So sad to see what is now happening at Disney. Perhaps because calls are now outsourced, the people answering them aren't really CMs but just employees of the calling service, so don't understand the expected level of service, dedication, etc., that we all have come to expect? IDK… but it's pretty sad, and frustrating!!
OP, it's really up to you how much more you wish to pursue this. It would stick in my craw to have a confirmation for specific dates at a specific price, but then have them say OOPS we made a boo boo and didn't book you for the entire time. OTOH, as you said, it's not like they are charging you more for something you are not getting… they finally are charging you the correct price for the correct dates. Taking the gift card and fps (and ice cream!) mean that you are getting something for the extra time you invested to make your reservation "correct." Of course, you have a confirmation for a specific price for specific dates, which they really SHOULD honor- and that's the circular argument and conundrum in this situation. Any way you can contact the Better Business Bureau, any other civic/community services in Orlando, and the state attorney general's office? And leave a nasty comment on trip advisor? You might be able to pressure Disney into honoring the confirmation they made (is this a legal contract in FL?), but do you have the time and energy to go through the hassle? Or do you suck it up, pay the correct price for the correct # of nights, and take the "parting gifts" and run?
FWIW… I think that despite Disney's mistakes and our dissatisfaction with customer service, as long as we all keep going to WDW (and that means DW,
DCL, etc.) they will keep doing whatever the heck they want, however they want to do it, despite customer dissatisfaction. As long as they have your money, Disney is happy. There will always be some new sucker to take your place, and as they don't have 10 years of experience visiting Disney to compare "today's" Disney to, they will be thrilled and amazed and rave about how wonderful Disney and their customer service really is!