The last repayment day is the 14th, so the payment will be automatically deducted on the 14th, which means you can just deposit the money on the 13th.
General banks can adjust the final repayment date once. You can ask the customer service of your bank. This has no impact and is a normal service of the bank. Of course, if the bank doesn't provide this service, you won't be able to adjust it.
In short, call your employer and ask, and if possible, just adjust it once. It will not have a negative impact on your credit record.
I hope you can adopt it, thank you!