If you have not unrolled the strips, i would vote for returning them, after contacting the store. Are you sure you bought them from a pet and smoke free shop? sometimes that is a big problem.
If you want strips cut, you can purchase an accu-quilt go with a 2 1/2" die and cut your own. If you purchase a fat quarter pack and wash and dry your fats, you will have the same fabrics as you would in a jelly roll. once they are pressed (and if you can starch them) run them through the accu-cut, or if that is not possible, ask to have them cut for you, or rotary cut them yourself. A fat quarter pack generally yields the equivalent of 2 jelly rolls, possibly 2 1/2. With a little creativity, these strips [which will be 2 1/2" x 22" rather than 2 1/2" x 40"] cam be worked into your patterns.
Hope this suggestion helps! Good luck...from a fellow allergy sufferer!