Switching from Tier 4 to Tier 5 GAE

I am currently working on switching my visa to Tier 5 within the UK.

But now I have a problem with choosing a sponsor. I have contact with two company, xxxxx and xxxxx. I graduated on Marketing this December, my job is a marketing intern for 12 months.

xxxxx is much expensive and all the fees are nonrefundable even if my visa got rejected. I am kind of worry about this point because my employer is willing to pay for my sponsorship fee only I will work for them for sure. Now my employer is hesitated to process my application base on this point.

As the xxxxx, they told my employer is kind of hard to get 12 months visa, normally just only 6 months. So I am unsure if my application will be rejected by applying for 12 months. So somebody suggests me to apply for 6 months first and then extend the visa. Anybody had any idea about that? Any recommendation of the companies?

Also, any successful candidates can give any ideas what I should pay attention on while I am preparing the documents.

Thank you in advance.

i am giving you a practical advice, not a single t5 sponsor will issue you 12 months Cos. They are no 1 fradusters of the world who unfortunately got t 5 license. They will give 6 months and keep topping up to a maximum of 24 just to make money. Its a money making tatics. Why would they give you 12 months in one fee? they will rather give you 12 months in 2 fees.
its worth paying that money yourself, if the employer is hasitating, atleast you are having some benieft of satying on the country.

hope that helps. good luck,