Dear @azhar,
Welcome to the Wefugees Community and sorry for the rather late reply.
I would highly recommend you to get support by a lawyer in this, as we also discussed in a similar case here.
Please be aware that you most probably have only 4 weeks for the appeal! You may also consult a migration counselling office if you need help with finding a specialized and good lawyer (with this search engine you can find an office close-by).
All the best for you and please don't hesitate to get back to us with any further questions.
Regards,
Meike