AdMob and MoPub data don't match



I’m using MoPub adapter with AdMob mediation for the past 10 days or so.

One thing I’ve observed in my MoPub dashboard is that, the number of requests is too damn high. It’s 351k for past 7 days! Now, if I see AdMob’s number of requests for past 7 days, it’s around 65k.

To make sure of this weird behaviour, I paused MoPub in my mediation stack and I have 0 mediation networks on - so it’s just AdMob. I tried it for a single day, and got only 12k requests.
Why is this happening? Are MoPub’s numbers wrong?