Uber says I owe R20.00 but won't say what its for or - pay or go away. I went.

Uber claims I owe them R20.00 for a trip made in November 2023. The last trip record is August 6 2023. Uber refuse to tell me what the trip was for, or provide any proof that about what the charge might be (fee, tip, eats, whatever) Their customer service person 'Abdullah' tells me to pay or go away. So I've gone away.