If it is not appropriate for your manager to deal with your grievance then another manager may take the lead (with advice from the PM HR Team).
Os nad yw’n briodol i’ch rheolwr ymdrin â’ch achwyniad, yna gallai rheolwr arall arwain y broses (gyda chyngor gan y Tîm Adnoddau Dynol Rheoli Pobl).