use the towel method for germination, after they sprout the root, then put them under lights, not strong light but t5 or cfl etc. keep them moist and keep the medium at about 80 deg. faren. keep humidity high, or use a dome.
If germanation problems persist, try soaking the seeds in water with a proper ph. then trsfer to towels. do not put the seed in the medium before the root comes out, or you will be waiting for a natual germination, which could be a very long time or never.

after they sprout the root in germination, and you have transfered the seed and root to the medium, it s important to keep them dark at that point, the root that is, keep it in a medium that light can not penatrate. but keep light on the surface.