Ready for Collection But Not actually ready

So initally I was happy with the speedy service on the repair of my phone. I received notification that my phone was ready for collection and proceeded to make the payment on the day via EFT (pay and clear) and sent proof of payment to WeFix.

The next day, I go past Canal Walk to the WeFix and then get told they cannot give my phone until they confirm with their finance department that the funds have cleared. You shouldn't be sending notification messages to clients saying its ready for collection if that is the case. Really poor customer service.