I have the green Karamja gloves for completing the easy tasks, I have also completed the medium tasks and the hard tasks and have only one left on the elite tasks (slayer points one).
I keep going to the foresters in Karamja, and Jackie the Pirate in Brim and even tried Explorer Jack in Lumbridge. The foresters tell me to bring in the Medium gloves to get the hard gloves and will not upgrade my easy task gloves.
What more can I do? The scale shows I have completed 46 of the 47 tasks.