I used strimmer cord as I couldn't find anything else long enough and suitable

Took the hose out of the bottom, put it outside the drivers door like he does too... Pushed the strimmer cord as far in as I could get it... Felt like it went 3/4rds of the way down before it got stuck... Anyway, hot water down the hose later to free the dirt... Water happily flows out of the hose i.e no blockage.
However, and unfortunately I am still getting drips inside the car. The roof lining, in the corner near the sun visor is absolutely drenched, if I pressed it, it was like a sponge!
So, drain sorted - leak still persists.
Next course of action boys?