Re:TSB Train Wreck: Massive Bank IT Failure Going into Fifth...
by philcrump on Friday April 27, 2018 @08:22AM
(#16940236)
They had very frequent issues with their payment processors.
The current account (now the only account as the prepaid beta programme has ended) runs on their internally developed payment processor, and has so far had minimal issues.
More information here: https://monzo.com/blog/2018/04/04/ending-prepaid/
Monzo/Mondo had issues on their own, and in fact they have very frequent issues with their payment processors.