Playstation Store PS4 a waist of time

I have been trying for more than a week to purchase a PS4 game online with no success. Tried all the websites. Also phoned the PlayStation Store in the UK twice. No one can help me. Tried last night on the Playstation Store (South Africa) and received the same message,...\ we have encountered a problem with your purchase...please try again later"<br> Can someone please advise how one can buy the PS4 game: Primal Carnage Extinction\"" online in SA. It is obvious that the PlayStation Store website is not user friendly and it is virtually impossible for me to make any purchases on their website...not sure what the issue is...??<br> <br> Thanks"""