أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
You should be honest and express the intensity of the client's feedback no matter how negative it is. Do not be afraid but do not take any side. Their reaction will be dependent on how you relay the message. In anyway or another, the management should understand the feedback properly and make the necessary action.