Analysis: Wronged tracker mortgage cases just keep growing

How did an over-charging scandal involving 1,400 people at a single banking group, in the summer of 2015, grow to encompass 8,200 customers across 15 lenders by last Monday, and then climb to 15,000 cases, and counting, by yesterday?

The tracker mortgage scandal publicly surfaced two years ago, when the State-controlled Permanent TSB set aside tens of millions in its accounts for a potential redress scheme in the run-up to a shares sale.

Permanent and its former Springboard unit were subsequently fined by the Central Bank.