On 5th of november I booked a car rental (sixt, e-voucher no:2884101) for the period from 26/11/2016 to 03/12/2016 in amsterdam. I paid in advance the amount of 79, 72 euros (document number: [protected]), which were supposed to be returned after the final payment (contract no [protected], rate: nl 8ww00fdmr, agent: [protected]). Since this has not happened up to now, please make the necessary arrangements in order to solve the problem. Looking forward to hearing from you soon, Konstantinos derventzis