Yn sgil adolygiad cyflym, a gynhaliwyd gan Lywodraeth y DU ar yr un adeg, cafodd 91 o gwmnïau eu tynnu oddi ar y rhestr a chymerwyd camau yn erbyn 135 o gwmnïau eraill. Mae Llywodraeth y DU wedi dweud ei bod yn bwriadu cynnal hapwiriadau a gwiriadau dilysu rheolaidd ar brisiau a chyhoeddi gwell canllawiau i ddefnyddwyr a darparwyr profion preifat.
A UK Government rapid review, carried out at the same time, has resulted in 91 companies being removed from the website and action taken against a further 135. The UK Government has said it plans to carry out regular spot checks and validation checks on prices and publish improved guidance both for consumers and private test providers.