Replying to CAMP OF CHAMPIONS RIPPED ME OFF!!!!!!!!

I hate for it to come down to me posting this, but at this point I'm pretty pissed off.
Heres the story:

I signed up for COC camp D a few months ago, and on July 7, emailed the camp to tell them that I unfortunately had to cancel. This email was never returned, so I sent another, which was also not returned, until finally I called them on July 10 to confirm I would get my money back before the camp started in 2 days...I dont remember who I spoke with, but they confirmed I would be indeed getting my refund, "within a couple days". Of course, they never refunded my credit card. So I called to see what was going on. 5 TIMES! Not a single one of my phone calls has been returned in almost a month, and I have written them a NUMBER of emails as well, and have not heard from them for weeks. I decided to call my credit card company to dispute the charges, but unfortuneately, I paid the deposit over 2 months ago, which is the cutoff limit for disputing a charge, so I can only dispute the remaining $2000 or so. I obviously want all my money back, minus the cancellation insurance, although honestly at this point I dont think they deserve to keep any of my money. I am $2600 in the hole, all of which was paid myself with my hard earned money. COC seems to have a great reputation, which makes this all more hard to believe. I hate to call them out publicly like this, but they owe me thouasands of dollars which they promised would have been to me weeks ago and hasnt, and they havent returned a SINGLE one of my 5+ emails or calls. I am very disapointed, and was planning on taking a camp next summer, but that definitely wont be happening now. Anyone else have problems with COC? Maybe they can see this and get me my fucking money back already.