Bad airport parking service ever

My complaint here is late but it has to be posted anyway or else they will repeat what they have done to me to others.

Bought a parking voucher on from Hyperli to use the services of Excellent Executive Airport Parking for parking at ORT. My voucher was valid till 09/06/2019. Send several e-mails through in the effort to book my car in but there was never a response. Eventually after trying a couple of phone numbers got through to a lady who took my details and booked my car in. I followed this up with an SMS and she acknowledged as all ok and and also mentioned that their e-mails have been down some whatever reason I can't recall.

On the day of travel I called the same number to confirm that I was on the way to the airport but the phone was off and so was all the other phones provided by Hyperli. I had to arrange another parking somewhere else at a cost and send the lady a SMS before my departure. They never got back to me since. It would be nice to have my refund now as I'm no longer interested in their service.