JimmyT said
Have a look at all the posts below (start from the bottom and work your way up) which will give you a clue as to how to proceed. You can’t stop any single provider from accessing your building (under the laws that were enacted to ease the spread of mobile phone towers) but you can set conditions, charge them rental and make them pay for the use of your electricity.
First, get experienced strata lawyer to send them a letter saying that you are not denying them access but that there will be conditions that they will have to meet. In the meantime, contact other providers (listed in a post below) and ask them what they are offering. If you allow one of them in first, this bunch will go off and set up elsewhere.
You can’t stop them from coming in but you can make some choices that make this a positive experience for your owners and residents.
Very helpful – thank you