Overcharged and no response

I am submitting this complaint here only because I still have not received any feedback regarding a dispute after 1st contacting Avis regarding the issue on 28 Jan.<br> <br> We leased a car from Avis for about 1.5 months between Nov and Jan. On reviewing the final invoices it came to our attention that we were charged for additional km usage which was included free as part of the contract. <br> <br> On picking up the vehicle the Avis agent informed us that we have 6000km for the entire period. They drew up 2 contracts each stating 3000km free (6000 in total), one was for a full month and the other was for the remaining time. Our invoice for the first month was fine, however for the second month the invoice stated we only had 1800km free (not 3000 as stated on the contract) and we were charged for the km above this. They also did not honor the fact that their agent said we had 6000km for the entire period, stating that the km from the first contract does not rol***** to the second contract. This is not what the agent told us and the t&c's on the contracts also do not state this anywhere. <br> <br> Avis agents are not being trained correctly in this matter and their t&c's do not cover all their conditions!