Hi @Hazel-and-Randy0 .. it looks like you have a nice place to stay... and many of your guest reviews confirm that.
I wonder if the single 3 star review is creating the current problem for you?
I suspect that some potential guests will go ahead and book your place (good value)... and then look at your reviews, maybe the other party in the stay points out the critical review./ followed by a cancellation..?
The 2 issues raised are:
1. the ants and
2. the bad cell/ Wifi connection.
Although you have tried to address each issue in your response, I suspect that your response does not adequately assure future guests that there is a resolution for each.
I don't think it is possible to edit your response to better address the issues, so suggest that you might want to mention each in your listing's description narrative.
1. Mention the aspects of nature that you now have recent mitigation solutions in place .. expand to specifically indicate how you have eliminated the ant issue.
2. I am not sure how you resolve the data supply conflict. Maybe ensure that you now have a mesh expansion hub in the cabin that will allow strong WiFi phone and data connectivity. If done thru WiFi, then the phone supplier should no longer be an issue for the guest.
If the distance is beyond the current Wifi reach, you will need to install a hub/ router and this may need to be wired to your house router to ensure the speed required.
To counter the comments in that review and ally fears of future guests, each issue needs to be more positively addressed.
I hope this may provide some reason for recent cancellations
Regards
Graham