Worst experience ever with Taxify!

What a terrible experience I had on Sunday the 1st of July. I waited for a driver by the name of Patrick. Poor guy got lost because of the stupid app for about thirty minutes while I was on a call with him using my airtime. I was then charged a fee way above the estimate that they gave me.. Not forgetting that they also gave me a promotion. I contacted support with no response to this day to inform them of this issue. So I'm not quite sure if their silence means they don't care or that I shouldn't have bothered because they won't listen anyway. Such unprofessionalism is disgusting really.