[2021] I was checking out the Bangalore skydive emote in the store, i had 950 coins and

Unfortunately we don't have a way to roll this back, sorry.

On the making of a purchase when you were short premium currency, I look a look into that, it seems there was a mixup.

Checking the logs, while you had 950 coins yesterday morning, you'd earned 100 more from the BP at 10:18UTC, so you had 1050 coins when you looked at the store today.