Thrifty Rent A Car

I recently rented a vehicle from Thrifty at Tampa Florida Airport after returning the vehicle about a half hour later i received a bill on my phone for $497.78 which I found odd because I paid for my rental prior to picking it up so Im reading further and I see this insane charge for $400.00 for outside washing... I have never heard of such a ridiculous charge before and I refuse to pay that. I started reading reviews about thrifty car rental and couldnt believe how many complaints there were for added charges about this company, they have no live customer service to even talk to about removing this crazy charge from my bill, I will be contacting everyone and everyone possible about this scam

I rented a car for a trip to Fl. I was asked if I would want an additional $8 per day for the additional coverage, I was then charged 1071 in toal which I understood to be a deposit of $500 per week for 2 weeks. The car was paid in full thgouh priceline and I wasn't informed that by agreeing to this that I would be charged this amount and that my original contract would be dissolved.