Putrid smell inside the car and lack of customer service

The car is stinking inside, there is a putrid smell inside it On pickup, the car was dirty even outside I am so disgusted and appalled with their level of service The car was flashing "Routine Maintenance Required" by the time we arrived to our hotel The persistent smell is still there. Sent them an email and no rreesponse for 2 days Truly unacceptable