Stodels Kenilworth Cape Town

I am a regular customer of stodels at Kenilworth Cape Town and received a sms to collect my free plant when I got there to collect my free plant I was told I by store staff at customer service I first need to buy from the store to qualify. See sms "Didn't collect your May free gift yet? Stodels is giving you a free Portulacaria Afra, collect yours today! ***" I normally collect my free plant when I am in the area. Very bad service They won't see me again.