There is a trick to getting a Wild Giga onto the back of a Quetzal and they can then drop it into your base.
You say Official, if this is not a legacy server, then you can take a screenshot of the conversation over a period of time where they threaten to do this and report it to Wildcard support.
If this is a legacy server, then you're shit out of luck. This is why ORP was introduced, but the issue is when you log in. The best option is to have a strong ally who can check before you log on and kill it before you log in, that is a pain in the butt, but can be a way to get those threatening to see that it won't work.
Another option would be a second account you can use to log in with, then scout the area first and see if they have dropped a Giga in there.