[mineralo]

make something like PlayerInfo
and when make the cmd to buy post your condition, I show you small example

pawn Код:

enum pooInfo
{
    pLevel,
};
new PlayerInfo[MAX_PLAYERS][pooInfo];

public OnPlayerCommandText(playerid, cmdtext[])
{
if(strcmp(cmd, "/buy", true) == 0)
    {
        if(PlayerInfo[playerid][pLevel] =>5)
        {
            balabla
            }
        return 1;
        }
return 0;
}