Wikipedia
Ukash
Ukash was a UK-based electronic money system that allowed users to exchange their cash for a secure code to make payments online. It was acquired by Skrill Group in April 2014, who merged the online voucher into the paysafecard system, acquired by Skrill a year earlier. All existing vouchers expired after 31st October 2015, remaining ones can be exchanged into paysafecards.
The system allowed users to exchange their cash for a secure code. The code was then used to make payments online, to load cards or e-wallets or for money transfer. Codes were distributed around the world by participating retail locations, kiosks and ATMs.