Disgusting customer service

I called Wesbank regarding my car loan and when I asked questions I was promised to be sent a document explaining how the calculations were made.It has been more than 3 days ,I even sent a follow up email to the consultant that was assisting me and did not get any response.I tried them on twitter and still nothing,I also sent an email and all I could get was an automated response.

Can someone call me to to sort my query and stop making Covid-19 excuses because I'm not making Covid -19 excuses in paying what is due