Very Bad service

I went to the bank for a letter of proof of account. When I got there there was nobody at Enquiries so I went to one of the 2 tellers that were on duty. There were only 3 customers in the bank of which 2 were busy with consultants. When I asked the teller for help she told me to \Go stand by Enquiries". When I told her there was nobody there she told me that there should be someone and I should just stand there. After waiting for 5 minutes at Enquiries nobody helped. At this time both tellers had no clients and when I asked what's going on"