Riot Games Bulk buy function error (limit money) took my all balance

Screenshot / video of the defect:




Page where the problem occurs:https://lzt.market/mass-buy/5680076/
How to reproduce the defect:bulk buy function
I used the bulk function and set the maximum amount limit to 50 rubles without any mistakes. Until now, the bulk buy function has never accidentally written a number, and there has never been such an error. However, as the limit was lifted at will, I bought a trashy account for 500 to 1000 rubles. This error forced me to consume all my balance. I've traded charging hundreds of thousands of rubles, but it's so unpleasant that I'm now considering leaving LZT. can i refund or roll back?