When will hsbc update my available credit?

I made a payment to my hsbc platinum credit card on a Friday at around 5:10pm through western union quick collect. Now hsbc says they will update my available credit on Monday, can I trust that this will happen because I need my card to pick up a rental car on Monday at 7pm. What has your experience been like if you have made a quick collect payment to your credit card on a Friday afternoon or weekend?|||HSBC is very reliable, it should be OK|||why do you not have a way to pay your bills on line and set them up to be paid on the due date? hsbc is known for this type of bussiness you account most likely will be posted after hours which in your case my not be a good thing. why do you use a company that has annual fee with the card. that is plain stupid. i do not have any cc that have a annual fee will not pay a fee to use any card.