Refund

Good morning everyone I'm Lungie I have a quiry with Vuma. On the 21st of June I made a payment incorrectly it went to Fibre while I was made a payment for wifi....I punch an incorrect account number ...on the 24 I made a payment for wifi because they refuse to give my money ,I call them several times I send my bank statement,,,I chat with them on whatsapp no one help me till today, my R400 it's gone with vuma Fibre.