I understand the government could block Vpn providers from having any service or servers in China. However they could do very little to prevent you from installing a clients software and using it if someone else made payment on your behalf and provided you with a login/password. I would assume such services exist in the grey/black markets for any reason noble or ignoble. In the United States Private Internet Access is a no log that runs about $25 usd for a year. Given the fact you possess and deal with crypto currency it would be a very small matter to request from someone you know and trust in the west open an account for you and then compensate them the fee privately. All the vpn providers pretty much accept crypto currency so skipping outside help its only a matter of accessing the site to make payment. I believe some of them even accept snail mail for some situations like this so it would be risky crypto patience.

There are many people who it would be a very easy gesture to make. They may make some enemies doing it but I'm hard pressed to imagine the service doesn't exist or that a trusted friend would refuse it to you.

Good luck.