@wanderer the VPN ban is a module that will check any new ip against a public proxy blacklist through an API, and so it rids the servers of anonymous proxies which have been abused for cheating in the past.
Nevertheless, i think when obst implemented this module, there was also some kind of bypass mechanism with an auth key or something to deal with exactly the case you describe, to make an exception for trustworthy VPN users like you.
I am not entirely sure how he does it, but i would encourage you to notify Obstriegel on discord, as he might be able to help you.