Highly poor service

My wife and I received a voucher for Homemark. We went into the store at Westgate Mall to redeem the voucher, when we got there they told us to call Homemark and activate the voucher. We tried calling the activation number provided, but there was no answer, we spent over R100 of airtime trying to activate the voucher and did not get any answer. We then called their client services where a rude consultant answered and told me she doesn't work with vouchers she then said someone will callback. That someone called back and I told her the voucher was given to my wife she requested her ID number and then said she does not activate vouchers for women and that someone will call, we waited and nothing happened. I am not really concerned about the voucher, but the time and money I spent trying to activate the voucher which they have assigned bad service providers to handle this activation is a waste. I am using my airtime to make the call. If they don't want with the stupid voucher which we never asked for, they must just say so instead of wasting our time and money whilst trying to activate it