Re: What about credit records?
With the push to do everything paperless there's less incentive - and quite possibly no mechanism - for customers to notify changes of address to suppliers. If the only contact detail for a customer is the mobile number then unless that's ported over to the new network the old supplier has no way to reach them. And that's apart from any impacts of successive DPAs on retaining records or, as the article mentions, the likelihood of any attempt at communication being ignored as spam.
In fact, it's surprising how many do get reimbursed.