Ok, so when I go to change my tank, click on the very last locked tank it brings me to where I can buy it, and it says that i have 55 tank coins, but I only have 4.
Ya, i found this glitch about a month ago, but you cant actually use the 55 tank coins because it only changes your on screen value not your actually tank coin value.
One time, I went to but luck with my one tank coin, and I double clicked it, and I got 2 Luck! It was awesome. Btw, im not trolling, I dont do that