Not happy with upgrade

I am a Vodacom customer for 17 years with 6 running contracts. I went to Makro to change a flexi 100 to a flexi 200 because of a special they have. But they told me that is only for new customers I will get R.1500 less on a gift card. Tell me does that make any sense at all? They want to give it to a new customer and not to a 17 year customer who never miss a payment. Well I have at least 3 contracts due for upgrade and think its time to move to another provider with all my current numbers.