As stated on his dashboard "do not refresh your dashboard often, Avoid causing traffic to our portal, else you will join batch b".
We know that 2018 NYSC Corps Members are anxious about going to camp, as a result of that the NYSC portal has been experiencing so much traffic due to frequent anxiety login by the prospective corps members checking to see whether their call up letter is ready even when the NYSC Official notify them on their dashboard that the will be notify when the call up letter is ready. Visiting and refreshing your dashboard may causing traffic leading the portal to misbehave.
One thing that might happened to those who refuse to follow instruction is the aggressive message written on this corp member dashboard. Check image below:
To avoid been move to batch b please avoid frequent login to the portal as specified that you will be notify when your callup letter is ready.