Dash is very slow in moving your purchases from pending to available, i think it goes something like this, miles/$ become available 75 days after the end of the month in which you made your purchase. Then, once they become available, they post miles on the next monthly posting cycle (may vary by user, but mine is around the 12th of each month), if you are in the cash program, then you have to request a check once funds are available, and again it is then processed on the next monthly cycle (not necessarily a month end date... i dont know).
They do respond to some emails, but if you are jsut asking when will this pending thing move to available, I think they ignore you unless it is beyond the time frame I mentioned above, if all that time hasnt past, they wont bother answering you... of course, you wouldnt have written if they made it clear how long it took to become available, and I have never found this info on their site. probably because you might not have used them if you knew how long... Ebates is 45 days after each calendar end, so you could wait about the same time with them too... Dash has responded to my emails when i asked about purchases not appearing on my account at all and other such problems.
My early dec purchases became available in mid march, so looking forward to the miles in another 10 days or so. Hope you guys get what you are supposed to.