Can i sue for being dismised unfairly from a recruitment agency because my face diddnt fit in?

i was unfairly dismised from my work placement through an agency today .. because i was told that my face diddnt fit in... plus i was picked on every day and i worked so hard when i was there always done the work i was suposed to then got told i was lazy .... i was unfaily treated their and would like to no if i can do anthing about it as it was an agency??