Practically, Aldi and Lidl would have to set up entirely new loyalty card systems from scratch as they have always considered them an unnecessary overhead.
Richard Murphy says:
March 16 2020 at 12:14 pm
Aldi and Lidl could use Nectar, almost overnight
On 1 February 2018 J Sainsbury plc announced that it had purchased the Nectar business from Aimia for £60 million.
At the time of launch, Nectar confirmed it would be open to more companies to join, excluding rivals of existing members.
And then this:
Audit of the systems would be easy to spot abusers
You want to audit the purchase habits of 65 million people? In real time? Real time being necessary otherwise the wreckers will have got away with the extra can of baked beans, won’t they?
And this is before we even think about having to reprogram all the systems.