Overpayments on Unemployment?

Usually my weekly benefit amount is around $150, which would be a $300 payment every 2 weeks. However, I've noticed that every 5 days I've been getting paid $300 from 9/16 to the 21st, then 26th, and so-on. 

I'm not sure if there was another order that passed for me to be getting paid this much, but I've tried calling EDD multiple times and the automated voice message says there is no one available to answer questions.

I'm not trying to get a letter from the government saying I owe them money considering I have no idea what is going on, and I'm not sure what I should do.