Missing Payments

I need someone to please help me because i've been sent from pillar to post. We transfered money from HSBC UK account to an Absa account ********** 0176 on the 15 December 2017 and again on the 29 December 2017. On our side the payments have gone through however the recepient has advised that they have never received the payments. i was given this email address: ********** and email returns as the email is invalid. can someone at Absa please assist me as this is rather an urgent matter.