According to this report in by the Star in Sheffield, Excel Parking have been banned for 3 months from the DVLA database. This means they will be unable to access Registered Keeper details for vehicles they wish to issue penalties to. They appear to have been found in breach of the BPA’s code of conduct (it is a requirement to be a BPA member in order to access the DVLA database). This could potentially result in a large reduction of letters being received by fleet departments across the UK.
Further details are available on the CAG forums, which also confirm that MET Parking and Roxburghe were also banned at the same time. The selling of data by the DVLA to private companies has always been controversial, it certainly makes a change to see them taking a tougher stance.