Unable to buy anything

hi. recently installed the f2p version of the game and played all the free stuff ok. but whenever I try to buy any expansion pack, skin or commander all I get is a blank blue screen that opens like there should be some writing and a click again to buy but it’s just blank. any ideas?

Hey AcidxBurn

Usually this is down to something stopping the store interface from properly connecting. We’ve gathered the most common causes of this over on our Support Site, so I’d suggest working through that list to see if it helps https://support.blizzard.com/article/000135100