IT8 Revenue Clearance Form - how long to obtain?

Hello there,
I have received the Grant of Probate having undertaken it personally, thanks to the assistance of members here who answered some of my queries,

I now need to obtain an IT8 Revenue Clearance certificate. I have sent off the application form for this to Revenue. Has anyone any experience as to how long this may take? I have posted the same query on the Revenue website.

TIA

All sorted. Revenue have been very helpful replied to my query and I should have it next week.

That's very efficient. I must say I find revenue generally to be very efficient.