housing benefits

hi,

actually I am getting housing benefits and I am entitled to one bedroom flat rate and have to move soon

I have found a two bedroom flat for the same price of the one I am renting now

I want to know if I can rent two bedroom flat even if I am entitled to one bedroom ???

will the housing benefits pay for me the rate I am entiteld to whatever the size of the flat I am renting 1 or 2 bedroom like it doesnt matter with them ???

or if I am entitled to 1 bedroom rate I have to rent only 1 bedroom , and if I rent 2 bedroom will be a problem and refuse the claim ???

sorry for my english :o

thank you