Adding insult to injury

So, I wrote a review about Discovery Bank's appalling service on the morning of 30 April. About an hour later a got a reply from them as follows:

Good day Peter Thank you for reaching out to us and bringing your concern to our attention and please accept our apologies for all the inconveniences caused in this regard. This is not the level of service we strive to provide and we will investigate this query on our end and provide with you assistance and feedback. Regards Sibongile

Needless to say I am still waiting for the promised 'assistance and feedback' more than 4 days later!!!