Poor service and seemingly, a total lack of care for customers

I am rating this current experience as one star but would give less if I could. Up until Saturday my experience has been 5 star. On Friday 06th Dec 2024, I booked a PUDO deposit locker at Westville Junction. I , as usual received the deposit PIN promptly via sms. On Saturday at about 1pm I went to deposit my parcel only to receive a screen message that the PIN was invalid. I returned home and went online to request a refund as their was a fault on their side and I was unable to return to that bank of lockers to try again before the PIN expired. To date (Monday 09th Dec 2024) I have not received any communication from PUDO or The Courier Guy regarding my refund request. Now since Saturday afternoon until now (Monday 16:30) I have made numerous attempts to rebook this delivery through the PUDO system and everything is hunky-dory until the very last minute when the financial authorisation for the transaction is declined. I have sent two online messages requesting assistance regarding this payment problem and, would you believe it - no reply as yet. What a sterling example of customer care and support. Oh, and yes, I have been to my bank and had my card checked out and it is all ok, so I must conclude that there is a problem at PUDO?The Courier Guy. Maybe this message will illicit a response.