My heating has stopped working in my friends 1.2 Renault Clio?

The heating doesnt seem to be working on my friends 1.2 Renault Clio. i am unable to provide much more detail other than that but he has tried bleeding the radiator. When the heating is set to 1 it blows out minimal warm air but when it gets turned up to 3 the cold air pours out. when it is set to heat the fan is working as i can hear it spinning but there is still nothing please help i cant survive driving around in the winter with no heating!!!!!!!
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Please email me on bad_boy_4or_life@hotmail