Wesbank delaying refund

Wesbank is taking me for a ride . I have a refund due from them as I paid more under debt review . They requested a letter from my debt counsellor that should state the refund should be paid to my account not to the distribution agent hyphen . Which the debt counsellor did draft the letter that I will use to all other companies that owe me a refund . The letter states that I have fully paid all my accounts and if they are any refunds due to me it should be paid to my account . The letter also further states that the consumer will provide their banking details . So I send this letter to wesbank with a letter of confirmation from my bank with shows that I am the account holder , guess what wesbank responds with am email that they acknowledge the letter however the counsellor should state the banking details and confirm that those details belong to me on the letter, what is a purpose of a bank confirming that has the same names and surname as wesbank does? , I really don't understand how a letter that will be typed by a counsellor will confirm this more than a bank confirming letter . I am disgusted at their service and moreover their call Centre agents say different stories when you call . NEVER NEVER again will I want to deal with this company ever again , every second person complains about them especially when they have to refund, car documents and many more .