Stash app *****ing money.

I found out today that the Liberty Stash app has been taking R20 from me every few days. I got a notification from the company telling me that I am not Stashing anymore when of these **** debits came through. This amounts to over R400 since September alone. I have yet to actually look at the figures. In return, I am only getting R5 back into my Stash account. This is theft. I want my money back immediately.