Just now I purchase points from steemfollower and then again I go to purchase another points after completing previous purchase. But the problem is when the point value is 0.7 then I go to buy, it says NAN why? then I cancelled the order, I mean I go back. After that again I go to purchase another points this time it says the same value but the problem is - now I can't able to purchase it says wait for 30 minutes.