A while back my FMIL told me she wanted to throw a shower  i accepted . Yesterday , she told one of my BM to contact the others to ask for $150 each for the  shower.  Only 3 of my bm live in town the other two will have to travel and are going through life issue's i think its  wrong to call  and say you know that shower you won't be attending well its going to cost your $150. Also, Since she  asked me i assued she was paying for it  not planning with the pockets of others.
Help tell me how to handle this and remember i am not supposed to know this my BM  just happend to inform me .