Highlander, have obviously had a very 'senior moment' over the festive period. Was absolutely convinced I had 2 numbers on first calendar and 1 on the 12 days of Christmas, so have been waiting and waiting ......
Turns out my 3rd number was on 2nd calendar :

which I completely missed

So am now sending money to cover all three.
Thank you for all your time and effort spent on helping the children.