Piyo...
Is your mom Plus size? or normal sized?
can try Robinsons, OG, Just, or the Sunplaza shop, can also try city plaza too.. Quite afew choices.. If not can rent "CS" for your mom from your BS too..
It's ok if you cant join me for my fitting day..No worries, yes, my HB is coming! heed all your advices.. haha