Disputing Ticket with Parkedin

Parked in the lot on Carling north of Dundas on Saturday. Had to go through the app as one machine was broken and the other was coated in ice meaning I couldn’t use a card or coins. It took a few minutes to get into the app, register my car and credit card and then pay. I have a transaction for parking starting at 12:28. When we came back, there was a ticket for $75 (wtf is this price?) and it was given at 12:29 (pretty sure the guy was sitting watching me thinking I wasn’t going to pay). The ticket is for “fail to pay and display” which is bogus since I went through the app.

I filed a dispute with them sharing screenshots of the transactions (with times clearly shown) for the parking and photos of the machines being unable to print a slip. Anyone had any success disputing these with Parkedin?