Uber Immorality and abuse

I had my first experience with Uber today.. and i am sure because of their size and power they could not give a S&^%*t about it but i'm going to give it anyway. i booked a ride whilst at the Upington Airport and confirmed it on the APP for R249,63. i then arrived in Jbg, found my driver and he took me home. Nice guy, smooth trip. then we arrive and he says i have to pay R286.00. i say no, i confirmed for R249,63. he says check the APP its R286. I check, its R286, an increase of about R36.00. No matter what i say or do i have t pay it. Uber are Uber Alles! So i pay, very reluctantly as this is allegedly a ******** act. They quote x, i accept, whilst driving and unbeknown to me, they increase the price to X+36. i have no evidence as the APP has altered the figure. i only know what I know. Disgusting.. and then the driver is innocent too. I woner how many other people had their quote increased. Most dont pay attention because they pay by card. I paid cash so i noticed. Disgusting manipulation and immoral behaviour.