Thank you both for your advice. I pulled on all the fronds and a few came loose. As all the leaves were brown and crispy, I clipped them all to the stem. Only a few remaining stems had not completely dried out in the centre. Hopefully the few stems I have left have enough life to start some new growth. I have read they are very slow growers anyway so I will wait to see if it dies.
I have read they are very slow growers anyway so I will wait to see if it dies. 
