50k points still not deposited

It depends on when they became pending. Credits are scheduled for deposit by the following 15th or 30th after you have at least 5,000 pending. So if you get to 5,000 between the 1st and 15th, they are deposited by the 30th. If you get to 5,000 between the
15th and 30th, they are deposited by the 15th of the next month.

Hi Kalashnikov X. Smwutches is correct. Your Credits are scheduled to be deposited on the next deposit date of January 12.

Hello Uncle Loudmouth,

There is currently an internal issue with the data stored for your account which is preventing a deposit. Our deposit process cannot correctly determine the primary billable account to deposit into for your Microsoft Account, and thus aborts the process.
This is an issue that we are working on resolving with another team since we are not able to fully access the database containing billable account information. At the moment, we have not received an estimate on when this problem will be resolved. We apologize
for the inconvenience.

If you are speaking of the Rewards program then you'll need to post in the Rewards Support forums.

forums.xbox.com/.../default.aspx

Hello zorber,

Unfortunately, we can only Reward purchases made while in the Rewards program. Therefore we are unable to Reward that purchase.