How do you get to the platinum level and what is the difference in coins?

Platinum is at 30,000 SP. Given that you have to go from about 4000 to 30,000 to get there at 6 SP per level, you'd need to be at level 4,300 or so. There are occasionally ways to get there faster with double SP and such, but even so. Once you get past level 300 or so, it will be a rare day you are able to level up more than once a day, because as the levels go up, so does the cost to reach the next level. So, I would put a lower limit on getting to platinum around 10 years . This is assuming you do not spend real money to play. If you do decide to do that, at least familiarize yourself with the periodic deals they offer to maximize your SP per dollar spent. To buy your way to platinum from the start would cost about $500, give or take. Maybe less if there is a "good deal."

I am at level 591 in gold what level do I need for Platinum, please help I am getting no answers.

I’m level 991 and still haven’t reached platinum status yet.. I’m actually nowhere near it... I still need 23,000+ sp I’ve been playing this game for the better part of 6 years and I just can’t advance.. My bother on the other hand is level 9000+ and has been playing about the same time I have... It’s been quite frustrating watching everyone you know blow by you....