Appalling customer service!!!

I am in total disbelief with the appalling service delivered by DirectAxis. If you want to settle an account early you will have quite a challenge at hand. After numerous e-mails, that they don't respond to, and multiple phone calls to the call centre, I've had no success in getting a settlement letter and banking details to settle my account. I have been promised by their call centre "consultants", that they will e-mail me a settlement letter but this does not materializing at all. As to date I have tried for 5 days to get this issue resolved, with no success. Their customer service is non-existent.