Bolt issues not resolved by automated customer support

Very deceptive and sly..... Had a 2.5km trip from home to work, usually R27. Looked at my trip it stated R27 selected eft payment and continued to book a cab. Driver arrived got to work only to find out they charged R51 for a R27 trip. Brought the matter up with automated customer support. They insist the price is correct. Not the first issue last issue was driver not having change, in my opinion not my problem... He then did not give me change for the trip. Complained on customer care.... They say I'm supposed to have change, to me that doesn't make sense. I'll just have to stop using bolt I suppose