Ifani zakwa Mdluli Eastern Cape province

Mdluli,
Sikhwatsha,
Makhunga,
Ngwekazi,
Nonkosi Silokazi,
Nolandzi,
Vezi,
Nolholho,
Etc
So is this means Mdluli from KZN and Mdluli from EC they are not related at all because when i go through all KZN Mdluli clan there is no where it looks to be related although i heard that we are all the same and we are Hlubi tribe or nation all the way from Swatini?