Let down by Uber

I am a pensioner and Uber Cape Town caused me to nearly miss my flight yesterday. For some reason I had to re register ( I have used the service on numerous occasions previously as a cash customer) and though I clicked the cash option they wanted banking detail BUT the screen on my phone did not give the option to enter the detail - out of desparation I contacted a rival company and they helped me out. This turned a well planned travel experience into a nightmare. I started out ready to be at airport 2 hours early and ended up running in and being emergency checked in while flight already boarding - unacceptable service. Definately furious and very disappointed