ZANDO not honoring terms on voucher codes

I am a loyal Zando customer, or was until today, I got a notification of 30% off your first ZANDO purchase, via the app- Please see below as per their link in the App store Herewitht he link: https://play.google.com/store/apps/details?id=com.zando.android.app&referrer=adjust_reftag%3DcufQ0sAGI8y8Z%26utm_source%3DOnsite%2BBanners:

This is what is said on the website, and app store under what to expect.

What to expect:

30% Off Your First Zando Purchase, via the app Minimum spend R750 | Not Valid on Sale

Easiest Way to Shop The Zando.co.za app is easy to use, allowing you to get all your online fashion and shopping done at the click of a button, on the go or even while you’re taking it easy.

I downloaded the app made my first purchase of over 799- reached checkout and guess what- they will not honor the voucher....

well after 30 minutes on hold with them, speaking a number of people I have been promised a 30% off voucher to honor their promise, if that happens I will remove this review.