That makes sense as a promotional or piracy-related message: "X-VPN Pro required, direct from Google". Given the puzzle and lack of further cipher key, the most plausible human-readable interpretation is:
d(4) ↔ w(23) a(1) ↔ z(26) n(14) ↔ m(13) l(12) ↔ o(15) w(23) ↔ d(4) d(4) ↔ w(23) Xd Vpn Pro danlwd mstqym az gwgl
"Xd Vpn Pro danlwd mstqym az gwgl"
Test: danlwd maybe "connect"? Let’s check: That makes sense as a promotional or piracy-related