Unable to make purchases

I had this issue about a year ago where i cannot purchse plants and it also kept saying cannot restore plants or purchases so I lost all the plants I had brought. I uninstalled the app. Now I have downloaded and started playing again these past couple of months as I do enjoy the game. I even brought more plants but now it is doing the same again and I am hoping I don't end up losing my purchases again. Come on software owners you need to be fixing this after this long otherwise u gonna lose money from people not being able to buy and you could be liable for making people buy stuff then taking it away from them. This should be fixed already.