Anyone know how I can raise my trade cap? My trainer level is almost 500, but my trade cap is still 500. :/

Your trade cap will only increase after you reach level 500. I have left the guide to the level caps below.

Required Trainer Level / Trade Cap

5 - 500 = up to level 500.

500 - 10,000 = same as your Trainer Level

10,000 - 14,999 = up to level 10,000

15,000 - 19,999 = up to level 11,000

20,000 - 29,999 = up to level 12,500

30,000+ = up to level 15,000

Thanks. That really helped out.