Earlier this week, the celebs got to hear from their loved ones in a challenge at the 'Forgotten Library'.
However, Jamie lost out on his after the group gave an incorrect answer, while Iain voluntarily forfeited his to save precious seconds in the time limit.
Yesterday saw the return of the Dingo Dollar Challenge, and Jennie and Toff were sent on a treasure hunt to find the loot.
"Here’s a riddle on a twig, to let you know it’s time to dig," their instructions read. "To find your money won’t take a lot, a helpful hint, X marks the spot."
The duo had to use small trowels to dig up a patch of ground, finding lots of junk, such as a Hawaiian lei, some fake news and a plimsoll.
Soon enough, they stumbled across the crucial Dingo Dollars and moved on to the Outback Shack - where their choice of treat was popcorn, or the missing letters.
It was a no-brainer for the girls, who chose the letters - and there was a stroke of luck for the celebs back in camp, as unusually, their teaser question wasn't based on a survey.
"How many stars have campmates won in trials this year out of a possible 125?" asked Kiosk Keith. "72 or 94?"
Dennis Wise brought out a chalkboard as the group took time and care to work out the answer.
They submitted the correct answer, 94, meaning Jennie and Toff were able to take the letters back to the gobsmacked lads.
Toff read out Iain's letter, which had been written by his sons.
"We think you did very well on the rocket trial. Thank you so much for doing it for us," they wrote.
"We thought you were incredible, because when you jumped for the last part we thought you might not do it. We were so happy that we jumped around. You are our hero."
Iain welled up at the note, and said it validated his decision to take part in the ITV jungle show.
"For a long time in here, I thought this was the biggest mistake I had ever made," he commented. "To have that makes it all worthwhile."
Jennie then recited Jamie's message, which came from his mum and sisters.
"The whole family are so proud, but we knew we would be," they said. "You've shown yourself to the world in your true form. Loving, caring, fearless, brave, funny and a true gent."
I'm A Celebrity… Get Me Out Of Here! continues tomorrow at 9.00pm on ITV.