R200 Refundable (Test banking Account) never receive it back as yet

Good day

I took up a cellphone contact with Telkom mobile on the 24/11/2017. On the 28/11/2017 my account was debited for the amount of R200, I was advised by the person to whom I had took up the contract with , that this amount was debited to test if my banking account was working and it will be refunded to me. Today I phoned the Telkom call center for assistance . an agent at the call center advised me to speak to the sales dept about the refunding of the R200.When I tried contacting the Telkom Sales dept , they refuse to answer the call. I think Telkom Mobile are **********. I need my R200 back