It is not obligatory that you can not take help from the below parties:
1. Family members
2. Friends
3. non-profit groups and
4. religious groups.
but you have to inform CIC that you shared your information with the above party.
There are two types of Representatives
1. Uncompensated Representatives:
- friends and family members who do not, and will not, charge a fee or receive any other consideration for their advice and services;
- organizations that do not, and will not, charge a fee or receive any other consideration for providing citizenship or immigration advice or assistance (such as a non-governmental or religious organization);
- consultants, lawyers and Quebec notaries, and students-at-law under their supervision, who do not, and will not, charge a fee or receive any other consideration to represent you.
2. Compensated representatives:
- consultants who are members in good standing of the Immigration Consultants of Canada Regulatory Council (ICCRC);
- lawyers and paralegals who are members in good standing of a Canadian provincial or territorial law society and students-at-law under their supervision;
- notaries who are members in good standing of the Chambre des notaires du Québec and students-at-law under their supervision.
If you appoint a compensated representative who is not a member in good standing of one of these designated bodies, your application will be returned
Please check the complete guide of using representative:
http://www.cic.gc.ca/english/information/applications/guides/5561E.asp
Though most of the agents in our country handled lots of successful cases, still CIC can refuse the applications from the above ground.
ভাই এখন ওসব চিন্তা না করে আল্লাহ্ আল্লাহ্ করেন।। যা হবার ছিল তা হয়ে গেছে আর যা হবার আছে তা হবেই।। কথা হচ্ছে যা হয় তা ভালোর জন্যে হয়।।
আল্লাহ্ চাইলেই সবকিছু এমনিতেই হবে, so, চিন্তা করেও কিছু হবে না.
আল্লাহ্ আমাদের সবাইকে ধৈর্য ধরার তৌফিক দিন।। দোয়া করেন সবাই।।
;D 
