Paying off credit card in full by direct debit - HSBC question?

[Deleted User]

I set up a direct debit in the beginning of March to pay off my credit card in full with HSBC.
Today was the last day to pay it off and I see the money was taken from my account saying "First payment" but when I go to my credit card statement, the credit from the last statement hasn't been cleared.
Also when I checked the DD details, the customer reference has the first 8 digits as the credit card number, but the last 8 are different.
I am worried that the payment went somewhere else? Or is it going to show up tomorrow? 

D3xt3r5L4b

It takes a couple of days to show 

born_again

DD will be account no, not card number.
If taken from bank account today. Then it might show tommorow on credit card or it might not till monday/tuesday.
What you should notice sooner, is you available funds have increased in line with the payment amount made.