To apply for Rent allownace, you first must have a place to live. The amount payable varies from county to city, based on average rent paid in various palces, but you must pay a minmum of 13 Euro. when you have aplace to live, you go to your local Community Welfare Officer at the local Health Centre adn apply for RA. They'll look for evidence of rent payable, etc. Look up the Comhairle website for more detailed info. I don't see what relevance a letter form the doctor has to SW if you are on BTEA.