Dont keep their promise! Where is my R400?

MiWay keeps phoning me asking me to do a quotation with them, today I agreed after I told him you won't beet my current insurance premium, he kept insisting i should do a quote, I agreed. He put me through to Tayler the person working under supervision, again like previously MiWay could beet my premium and after they promises me R 400.00 if they cant beat my current premium, they transferred me between them and then, after I said they are in the wrong because they can track all my previous call ( as it is recorded ) I want my R400.00 At the end the 2 of them ( the guy and Taylor) just hang-up on me because they don't want to pay me what i am owed for wasting my time as I told them.