Budget don't give your deposit back!

Everything is wonderful dealing with budget until it comes time for them to return your deposit. Car ran great service was wonderful and upon returning the car and getting a clean inspection, I was promised in 6-8 days my deposit would be paid back to me. It's now 15 days and after many emails to customer services and literal hours waiting on call centers, I am now being totally ignored by budget car rental and I am no closer to getting my sizeable deposit back. Shocking and disingenuous.