Irish boxing champion Kellie Harrington is leading a push to see the Toy Show Appeal reach another million Euro by Midnight tonight and see banking app Revolut match the figure with a million Euro of its own.

Following technical difficulties with the app on Friday night, Revolut co-founder Vlad Yatsenko announced a €100,000 donation to the appeal and pledged to match any further donations this weekend via the RevolutApp up to €1m.

In a Twitter post, Olympic gold medalist Kellie said, "If you donate to the Toy Show Appeal using the Revolut app before Midnight tonight, the co-founder of Revolut, Vlad Yatsenko, has said he will match your donation. Whatever you put in, it's going to be doubled so please, if you can donate, donate.

"Let’s try and change the lives of children for good."

Speaking on Saturday, Mr Yatsenko, a Ukrainian billionaire based in London, said: "What an incredible support RevolutApp customers gave to a worthy charity RTELateLateShow!

"Granted, there were some challenges at the peek (sic) of the live campaign. So, I've personally donated €100K, and will also match any further donations this weekend via RevolutApp up to €1m."

Revolut, which was founded by Mr Yatsenko and Nikolay Storonsky in 2015 and claims to have 1.5 million Irish customers, was dogged by serious technical issues on Black Friday, with customers having problems signing in, making card payments, topping up their bank cards or making money transfers.

Toy Show viewers were hit by technical difficulties last night while trying to donate to the appeal.

"Hi, there are currently issues affecting our app functionalities," Revolut said on Twitter last Friday. "We’re already working to have this resolved as soon as possible. We apologise for the inconvenience! We're really sorry for the trouble."

The Late Late Toy Show charity appeal had already raised a total of €5,161,897 by Saturday afternoon.

The RTÉ Toy Show Appeal in partnership with The Community Foundation for Ireland helped over 600,000 children and family members across the island of Ireland last year.

Viewers can continue to donate to Irish charities here and via the 'donations' tab on the Revolut app.

Dustin the Turkey was among those who expressed their disappointment with Revolut last night and welcomed Mr Yatsenko's pledge.