Anyone on Zain 5G home internet managed to get off CGNAT?

Been messing with my Zain 5G router (Huawei H158) trying to get better ping for COD and finally figured out why I'm stuck on Moderate NAT.

Router's WAN IP is CGNAT range. Game shows my external IP as something completely different. So port forwarding does nothing, UPnP does nothing, DMZ would do nothing. Everything gets stopped at Zain's end before it reaches my router.

Result is COD always connects through a relay instead of direct, which adds latency on top of everything else. Ping is 97ms even on a Kuwait server which seems high.

So has anyone actually called Zain and gotten a public IP on a home 5G line? Did they charge for it, or did they just tell you to get a business plan? Or is it a flat no for FWA.

Also curious if Ooredoo or STC do the same thing, or if one of them is better about this.

Connection itself is fine otherwise - 600 Mbps, 15ms idle, zero packet loss. Just the NAT thing.