Something very wrong

Worst International Service. This is the second time in ONE month, that they cannot deliver with first attempt parcels from the USA (AMAZON) for me. Why they have difficulty with the address is that not following the address label as I enter it on AMAZON and change postal codes as they wish. It is always their sub-contractor that phone me and when the parcel is delivered it is the same as the one I entered on AMAZON. So way the delay then? And who change the Codes and sub-burbs. I pay a hell of a lot of extra money, to get my parcels in 7 days, but end up, by this mess and get it later, the no apologies. The ap on the phone sucks as you cannot correct their wrong information. I am sure that they will mess it up again. Please AMAZON ( and I will write to them) CAN I HAVE THE CHOISE OF CARRIER!