Useless customer service

On 22nd September I received an email regarding joining the rewards program. The link in the email did not work. So I joined through online banking but nothing came up regarding what was promised in the email. 6 emails later absolutely no response. Phoned and was asked to send Lerato the email in question as she had no idea what I was talking about.No response. Receive an email today regarding rewards statement . cannot get into it. It appears to be a **** but as nobody comes back to me they actually don't care.