Unhelpful and Rude

Momentum Multiply are have a reward program. Edgars is part of this program and have been for a few years now. The Momentum Multiply shop offers vouchers at a discounted rate which one purchases online and uses at varous partners-Edgars is one of the partners. I have used this method many times without any problem. On Saturday I went into the Edgars Beauty at Dainfern Square. I bought a few things and when I got to the counter and produced the voucher on my phone, the staff were quite rude and almost insinuated that I was being dishonest! I have been in there a few times but find the staff are never helpful. Surely Edgars should train their staff on what vouchers are and how they are utilized? It was most embarrassing to be treated as if you are a ********. Edgars staff should be more informed and trained on how to deal with customers, not make customers feel they are doing them a favour.