Very ************* payment system

So I have the Makro Credit app (RCS credit) installed on my phone. I make two payments to my credit account on a Sunday. The money comes off my bank, and then the app gets stuck on payment processing. What is this about? I pay money and it just doesn't pull through onto my credit on the app. How can we trust a company like RCS or Makro, when we as good samaritans pay our accounts and then we get left questioning if our hard earned money has actually even gone into our account. Now I have to investigate if my money has gone into my account! Not acceptable!