Wrong Fuel diesel in petrol in a Toyota Prius.

Last night at 10pm i went to a customer who had put 47 litres of diesel in petrol in his Toyota Prius Hybrid, i used my special probe to access the fuel from the filler neck and after 25 minutes the job was done.The customer was quoted from the AA £294.00 to do the same job but he would have to wait the next morning before the fuel drain could be done, lol.