Download Ps4 worms Rumble?

I urgently need help so I can't download the game Worms Rumble even though I have ps + it is only in the shopping cart and then I have to pay the 14.99 euro someone has a solution with my friends it worked strangely and the PlayStation You can't get support, which I find outrageous

Did you top up your credit because the pictures say that you have 0.00 euro credit?

Was a bug habs tried the next day then went