Most probably... Best is post at property section...

Btw, the deposit taking process got documentation mentioning that that property will be reserved for you indefinitely?
Your loan is still not yet approved, thus I think they should be able to sell to others first.
Did they returns you the deposits?

since you mentioned that "C replied my loan got rejected, and she said already help to appeal but unsuccessful too".

thus they did held till your loan got rejected, right?

unless they did not return you the deposit, i think going to BNM also cannot do much