The recall info. is HERE
Their description:
Risk level
Serious
Risk type
Electric shock
Risk description
The fault was identified during routine installation process which includes a test. It was found that the switch did not isolate the circuit. The product does not meet the Electrical Equipment (Safety) Regulations 2016.
Corrective measures
Withdrawal from sale and recall of affected batches by the manufacturer. Recall of the product by the end user, E.ON. E.ON have written to all affected customers to arrange a visit to carry out a safety check of the isolator. E.ON customers who have received a letter to arrange a free visit and have not replied should contact E.ON as soon as possible.