Urgent help required

Hi I have applied for irish short stay c type visa as a family member of EU citizen.my wife Is EU citizen and she wants to move Ireland with me and wants to exercise her ru treaty rights.Now embassy of Ireland wants covering letter for purpose of visit in ireland.They send following email..
Dear Mr Ullah,



Request to send fresh covering letter by clarifying purpose of visit to Ireland , Is it short stay - visit family or Long stay - Join Spouse.


Kindly send signed declaration letter through email as soon as possible in order to process your application further.

Can anyone help me how to i right covering letter for accompany with my Eu spouse in Ireland.we both leaving outside Eu.
Regards

There are plenty of templates of visa cover letters all over the internet, copy one of them and adapt it to your personal circumstances.