No birthday voucher received

I did not receive a R100 voucher on my birthday but my girlfriend consistently receives R100 Makro vouchers on her birthday.<br> <br> I have hellopetered Makro 3 years in a row around this matter. Why do you discriminate amongst your customer base?<br> <br> In addition I never receive any of your Weekend deals, despite requesting to be emailed.<br> <br> How difficult is it for you to get things right?