Annoyed!! account settlement process

I want to close my credit card account and have contacted Discovery multiple times

I received an email Dear Miss August

Thank you for contacting us.

We have sent your request to the account closures team, who will contact you to assist with closing your account.

Your reference number for this inquiry is ***.

If you need any more information, please contact Discovery Card on ***or visit www.discovery.co.za.

No one has contacted me still , when I called I get through to rude call center agent who gives another ref number and says we will call you back in 5 days!!! what nonsense is that. Is this a delay tactic or what???

Discovery is so slow with everything, including discovery medical aid