Have a look a below video from 8:20 onwards:
9:25 into the video you can see the arm hitting the spring as you described as well.
I think this describes the exact phenomenon you are facing. If so, my recommendation is to approach a professional off-road workshop that specializes in suspensions and have a sitdown with them to understand what you want, what they can offer you, and for which budget,
If the spacers were installed by some other shop, you can take it back there and ask your money back, as they done have a shitty job it seems.