duel citizen****p

Hi All

I was born in prague in 1964, my parents left in1968 for South Africa
and were naturalized as sa citizens in 1978.I was also automatically
naturalized.
I was issued with a Czechoslovakian pass****t in 2000, which expired in
2005.
On reapplying for a new pass****t , I was informed that I now have to
reapply for Czech citizen****p.

Im traveling to Prague next month and now have to travel on my SA
pass****t and obtain a visa to  visit my place of birth, I also need a
invitation from my family in Prague in order to get this visa.

Will I get my citizen****p?
Will I be able to retain both citizen****ps?
Is this normal or just madness?

Any one out there please confirm my fears of loseing my Czech
citizen****p, or am i worring for nothing.