heya, did you get banned? i did! i think it was during a full marks event. it could've been that someone reported the rank 1 guy in our group cos he had crazy high points, then everyone in the group was scanned for cheating. it could ALSO be that i clicked the boost 1.5x gem options and it showed an error message, thus alerting the system and banned me.
a few days ago, i bought out everything in the brilliant bargains box, but was able to progress to yr3 (it took me 3 days of playing with the mod to get to yr 3) with no problems. i could have been banned from that instead of full marks.
i also was the top scorer during house pride (before full marks). my house ranked last though.
basically depends on whether jamcity take a few days to find and ban you, or if they detect immediately during an event and ban you. haven't seen any info on this.
i factory reset my phone (it was my grandma's old android that she left at my house) and i'm able to install this same mod and start from fresh. i tried to find ways to change the device ID without root, but cloning didn't work (just a black screen).