This X1000! A few years back at WDW, a few of us in our family got sick while on vacation to the point of not being able to visit the parks, etc. I heard via other resort guests saying this too and upon getting home, I sent a calm, detailed email explaining our situation and how it impacted our family vacation, park touring, etc and how we thought a bug might have been going around the resort. Someone called me within a week or two and long story short we got free park passes to come back and visit, which we used next year!You can go to the DLR website, scroll to the bottom, click on the Contact Us link. Use the email option. Be sure to include all your contact information and don't be surprised if someone actually does get back to you in a few days to a week or so, Disney Guest Experience CMs really do want to know what's going on and how it is affecting guests' experience at DLR. Be as calm and as detailed as you can be about what happened, when, where, what went wrong, how it affected your day, how it could have gone better, whether any CMs were involved (include names and/or descriptions if relevant), etc. This isn't about blaming or shaming or venting, but about trying to improve the current situation for future guests. Let Disney know that you know they can do better.
Also I had a billing error last spring that didn't get resolved for awhile, called WDW guest services and did get a free photo package and several days of extra fastpasses. I've found the key is not to yell or get mildly angry, stick to facts and usually something will be offered if you can get to the right person.