This is the second time that this has happened. I was flying inbound to DNMM and I contacted tower. And then for like 5 minutes, I couldn’t hear anyone on the frequency. There was 70+ arrivals, surely someone would of contacted ATC in 5 minutes. So I just left, I didn’t want to get reported like last time because of the exact same problem. I get super worried in situations like this because there is no messages you can send to ATC (especially to tower) to make sure that you guys are still connected. And FYI, I do check the green tick on the top right and it always says I’m connected. Can some staff look at this please? The first time this happened was with the controller @IFATCLee3440. I’ve got screenshots.