As for bluffing, it's not entirely true, but some promises are really made, and some are completely impossible.
If the complaint doesn't work, you can call the next higher level, but not now. Liu directly called the Ministry of Industry and Information Technology to complain.
I'm afraid it's difficult to completely solve the advertising problem. First of all, all three major operators have this problem, not one operator in one or two regions. It has not been solved for so many years, and there is still hope for a single advertisement to be solved. Try calling the Ministry of Industry and Information Technology!