Massive quality difference

I ordered two shirts with the same design, one of them was perfect! The other looked like it had way too much black ink used in the printing process. There were black patches where it should have been red, and the black bled around the edges of the design making it fuzzy. I was really upset as the misprinted one was the one I’d ordered in my size. I’m still waiting on Stickermule to get back to me with a resolution, as I feel like it should be replaced. I don’t know how it managed to get through quality control … I want to order more, I ordered two to check the quality before I placed a larger order, but now I’m reticent to.