Vodabucks

I'm happy with my everyday voice and data usage. However I am not happy with Vodabuck/Vodashop as part of my benefits as your client. Everytime I buy a voucher on vodastore my orders end up at pending. Then I have to call your agents( big ****s), the other ends up getting cancelled because everyone is failing to say what the issue is and how to resolve it. I spend money also topping up the vouchers which comes with bank charges and the money ends up being reversed after a long time and creates unnecessary bank charges for me. I currently have 2 charges pending. I uninstalled the App and installed again but still nothing works.