Hi Raj187,
I don't have ISOfix child seats in my car (just a pair of ordinary ones), but I've looked up the parts catalogue for you.
As far as I can see, the anchor mounting points are where you found them, but there are no actual anchors there or hiding.
You are not going mad. It is not a silly question either.
It appears that you need to buy the anchor plate separately. Look up Honda part number 08P90-SAA-610A. It appears to be around 8 quid from a dealer. A dealer should be able to confirm if this is the part you need.
Hope this helps,
EH