Supervisor disgrace

I wish to inform you about your UTTER disgraceful, unfriendly, unhelpful supervisor. I've been shopping here for years, but won't ever again, due to your supervisors. I almost left without my R800 purchase.When paying with \Brand match voucher".... I stood there MORE than 10 minutes waiting for a supervisor to approve (3 were on duty). The cashier's finger was constantly on that buzzer"