International payment has yet to reflect 6 days later

I have recently made an international payment to a UK account from my Standard bank account. I am currently in the UK and the payment has yet to reflect in the UK account. I called Standard bank to find out where the transfer may be and the lady could not give me the correct contact number from Overseas. I have been waiting for this payment to reflect for over 6 days now and am not getting much assistance from standard bank at all