Complex sentence: Upon Cypriot independence, the British flag of Cyprus ceased to have official usage and no replacement was created for Akrotiri and Dhekelia as there had been no official grant from the College of Arms.
Split into simpler sentences: Upon Cypriot independence, the colonial flag ceased to have official usage. No replacement was created for Akrotiri and Dhekelia, as there had been no official grant from the College of Arms.