Beginning to look a lot like thievery

I've been trying to get a refund for a double car payment for a week. No response has been received on any of the copious amounts of emails sent to the address on the official Wesbank website, not even an automated response. Upon contacting the customer service line numerous times, I am consistently told to simply email the relevant documents to the email address on the Wesbank website, to no avail.

This is beginning to look a lot like outright thievery, and is definitely unacceptable, especially from a "reputable" credit provider like Wesbank.