In particular, to ensure that claims are valid, we continued to carry out a series of due diligence checks, working with taxpayers and agents to check the nature and accuracy of claims.
Er mwyn sicrhau bod hawliadau'n ddilys, gwnaethom barhau i gynnal cyfres o wiriadau diwydrwydd dyladwy, gan weithio gyda threthdalwyr ac asiantau i wirio natur a chywirdeb hawliadau.