I logged a quality and bad service complaint

I logged a quality and bad service complaint. I received an email from an agent from Woolworths giving me info which in my opinion is a bunch of ********. They were apparently going to send me a voucher which i did not receive to this day. I have alao rep**** to the agents comment via email its been 2 weeks now and no reply from woolworths, how unprofessional can a company be