Philips DVD
Power supply wire did not changed properly

I had given DVD to authorised philips service centre jamal road patna for repairing on 03.12.2011. the power wire did not changed properly so that power supply kit got out of order I have again submitted the DVD to same service centre vide work order no 22136000084493 dated 26.12.2011 but centre is charging again for repairing the same where as I have arleady paid charges during of repairing of first time it is requested to took into the matter and intimate accordingle at the earliest.