The developer of Poless VPN is CITY OF THE SKY NETWORK and all inquiries must go to them.
The GDPR gives EU and UK residents a "right to erasure" meaning that you can request app developers like CITY OF THE SKY NETWORK to delete all your data it holds. CITY OF THE SKY NETWORK must comply within 1 month.
The CCPA lets American residents request that CITY OF THE SKY NETWORK deletes your data or risk incurring a fine (upto $7,500 dollars).