Refund Request

On the 2nd of March 2019, I accidentally put money on my DSTV account , I phoned Multichoice and spoke to the guy by the of name Zingisa Mbhuza, and requested the refund . i was told to send proof of payment , ID and proof of bank account , which i did . i phoned again to follow up on the 5th March and i was told NO REFUND REQUEST was done on my account. Elisa Yabala requested that i send her same documents that i sent to Zingisa which i did she told me i was going to get the refund after 5working days. the 5working days has passed. NO REFUND OF R450 can someone please assist me