I don't usually comment, but yeah I'll write in my 2 cents.

I think constructive criticism would be to give suggestions of how it can be better conveyed. I think they're still trying to manage a lot of content and it seems language isn't one of the strong points, as evidenced from the test questions and answers... (Mods have said they're working on it). Either way, no one's forcing anyone to spend on anything. I'm sure they'll take note that not many are spending on the wheel and perhaps improve it somehow.

As for the recharge rebate... Yeah, I know how it feels, I just topped up quite a bit just a few days before to upgrade to Jounin medal, but hey, I'm not going to complain. Whatever the cir*stances there might be, I'm sure there's some sort of reason behind it. At the end of the day, it's just a game... Some bits are bumpy yeah, but well, so far, I'm still enjoying the ride!