As far as I remember you hired an agent and they did not follow up your case properly? Did they compensate you for the time loss etc?My case had been refused in October due to I didn't submit documents they asked for.. They ask me for 2 years experience and I show them only one year experience and last three years I was running my business manually like paper work..
I want to apply again is that possible to apply again
IMO if you are clear about the reason for rejection and you are confident that you can overcome those right away, you may apply again (please ensure there's no restriction period first)