Mini preparation emergency!

Hello I have an emergency. My mini looks like sow ….. because I am the owner of 2 dogs and every now and then a rabbit rides it looks like that. Now the car has to go back to the dealer (leasing return). Since it is a company dare, it makes the thing even worse. Does this go away and if so what costs such a vehicle preparation with the expert in the condition? I once took some pictures so that you can say exactly something at price etc. And where can you find a n Good conditioner? I’m aware that nobody cleans it for 50€ it’s also a little about the money because 50% takes over the company. It’s important to me that it gets really clean and the car no longer straightens. (Pictures are together as here you can only upload 1MB)