VUMA TEL /SADV IS A ****.

"Good day Refiloe thank you for contacting SADV, we apologize for the delayed response you are through to Mungwe, kindly note that the system currently shows that your voucher expired on 2024-06-24, I just sent you an SMS with the voucher number to use to make payment." My story is: I degraded my services using their self service app then it gave me voucher number to make payment which I did successfully ,now they telling me the story above and my payment is made on the 20th before their expired date instead of solving their error they want me to make another payment.