Filament curls?

[fiabx]

Hey guys, I'm new to 3D Printing and new to this forum
I have a Wanhao Duplicator I3 Plus which was one of the bestsellers on Amazon, and I was working fine with Prima filament in it for about a week.
'Real Filament' also received high reviews, so I bought several spools of that, also from Amazon, and when I tried to make it work in the Printer, it just came out of the extruder and curled around the nozzle. I have tried cleaning the extruder using the Atomic Method, but the same thing still happens. If I print something, it may start alright, but soon the filament will curl and it will just go wrong again.
I am using the heating settings recommended with the filament. What do you think is the issue and what can I do to solve it?

[jjpython]

Try increasing the temp 5 degrees at a time until its ok, the figures supplied with filament are a guideline, it also depends how accurate your printer is reading the extruder temp