CAR KEPT FULL 24 HOURS WHEEL SPANNER WENT MISSING

Bad experience ever on my last car service with them , they kept my car fir full 24 hours the next morning with no update I went to collect my car and I was told that there I new system installation that is part of Hyndai to be done , I had to come back at 1PM ,NO COMMUNICATION was given explanation nothing regarding what was installed in My CAR SO WORRIED WITH LOT OF QUESTIONS????? now checked my tool the Wheel spanner is no where to be found I might have noticed it at the later stage but it's definitely when missing from Hyndai after three years of driving this car