Strange one- Revenue payment not taken from acc but showing as paid on my account.

Bit of a random one! I had an outstanding tax liability that was being repaid by a reduction in my credits over 4 years. This week I was in a position to clear it. I made a payment on Monday, via bank transfer, through My Account. I can see the payment on my account and today I received a new tax cert with no further reduction in credits.

But the money has not been taken from my account! Now, I have no intention of not paying it, and the money is sitting there waiting to be debited. And I will call them as soon as I have the time in work to dedicate to sitting on hold!

But just wondering if anyone has ever had similar thing happen!? Just seems very strange!