Help!

My mother and MIL are supposed to be throwing me a shower, but MIL has yet to send in her invite list therefore nothing less has gotten done. What do I do? I’ve asked her on multiple occasions to send it over, and she never has. Now, for the last few weeks we haven’t even heard from her. I don’t want to be that person that “discludes” ( don’t think that’s a word) someone but I’m not sure what else to do