Bad Service (*****ling money)

Telkom, on the 29th February I bought airtime on my banking app for my data sim with you guys. My bank has been trying to get feedback from you because no money was credited to my sim by you. In order for my money to be refunded you need to provide feedback and yet since the 29th you haven't given them any help. We are taking about more than 300 rand's worth of money. why wont you contact them? I am without data and without money because of your poor service.