CHARGED R99.40 FOR R20 FUEL??????????????????????????

Im lost for words about Tempest,how the hack do you charge me R99.40 for refueling the rented car with R20 Worth of fuel?This is ridiculous and absurd to say the least, you can see that upon the return the vehicle had a full tank the same way you gave it to me, Please stop embarrassing this organization by refunding me back the below Refueling Service Fee R 17.54 R 2.46 14.00% R 20.00 Refuelling Charge R 99.40 R 0.00 0.00% R 99.40 ********** 4 / TORTA ********** RA7 ZINVOIC_01