A major betting company harvested troves of data from a suicidal gambling addict to target his weaknesses and predict his losses, The Mail can reveal.

Sky Bet shared thousands of items of data with third-party companies to groom the high-value gambler that they wanted to win back.

The betting giant – owned by FTSE 100 gambling group Flutter – even worked out that it would make £1,190 a year from him if he returned.