Credit Card - missing payment and no response for over a week.

I have been trying, unsuccessfully, since the 6 June to get the funds I paid into my credit card to reflect. Since the migration from FNB you guys seem to have lost the plot. I have sent countless emails, made endless calls to the call centre, sent facebook messages and still nothing. I have emailed the proof of payment numerous times, I am at my wits end. I get no response from you. I am in urgent need of the money I transferred. I have requested to be contacted my email. In desperation I am no posting here in the hopes that someone from the organization can assist me.