Still no IRP5 And no answers

My father has mailed and phoned for weeks now with no answer, he urgently needs his IRP5 and Alexander Forbes still has not sent it. He has sent his new mail address because he changed work and no longer has access to the mail he used prior, they never reply nie answer the phones. We need this IRP5 as the tax needs to be filed asap. Please assist us in this matter. Barend Marthinus Harmse ***. Thank you