Useless as usual, don't know why I am still with them

I am being spammed by FNB, specifically from the credit card division from and email address ***. So I go into that bank, they can't help, and I have been referred to so many numbers to call I have lost count. I even contact the credit card department and there response - Dear Valued Customer, We thank you for your communication, please call our contact centre on *** or visit the nearest FNB branch for assistance as we only deal with FNB Credit Card related queries. Kind Regards CUSTOMER SERVICE TEAM.

These people are unreal, the document is clear that its about the credit card but on one is willing to sort out why I am being spammed daily with this email