Joe,
Usually the local dealer has to stock spare parts to a safe level. According to my experience they can meet 80% of spare parts demand. About the rest? You can ask them to replace it by the part from a new car, or you have to wait a long time (If SMA has a logistics center in Dubai it could be much faster). They will order the part but they will not order it by air, that's the point.
Two options for you.Option one, argue to local authorities, they may help to put pressure on dealers. Option two, take the part with you to some other dealers for an alternative.
Besides show me the part (better with code, dealer knows it), I will see if my people can help.
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Good luck.