We have always received confirmation within 10 days whenever we have made a ressie or a payment or a change of any sort. If you have not received anything I would call.
I made a ressie over a week ago. Paid the deposit over the phone. USUALLY, I have my confirmation by now. I called them yesterday and was told that due to the holidays (post office), their computer updates, etc. to give 10-14 days for the conf. to arrive.