Hi there,
I totally understand that this is frustrating. Unfortuntately as Ad Manager and Adsense are two different products, Google also has different people working for those products.
We're partnered with Google Ad Manager and have people we talk to there. But, when it comes to Adsense, we don't have a representative there and we cannot contact adsense directly.
So, if you're having trouble with Adsense, the best bet is to go through their guides really carefully. Once you've ticked all their boxes and followed their rules, try asking for help in their support community.
https://support.google.com/adsense/?hl=en-GB#topic=3373519