I suggest ordering one thing at a time since the promo code only works on one item at a time, over $25..(proton pack, trap, PKE meter all worked for me), use code 19vip20 for an extra 20% off and free express shipping. Select express shipping during checkout to get free shipping.
So for example, if I go to the Spirit Trap page, the item price says $49.99. I add it to the cart. I go to the cart. Now in the cart, the item has an item price of $37.50 and under the item it says "Discount: one for $37.50". It seems to only work on the equipment stuff, but who knows. On the same page/cart, there is a box for a promo code. Enter 19vip20 and hit apply. It'll take another $7.50 off the total. Hit checkout. Choose Express shipping. It'll show a price for express shipping but it'll also discount the same amount.