Re: Relatives visiting soon
unfortunately, no 
but maybe you could specify a budget for them to spend money on and then you can reimburse them when you get here. ask them to buy a size up so she can wear them for a little bit longer. even around $60 would be enough to get at least a few dresses and shoes for her.
other sites:
Home - The Children’s Place Canada
Shop Clothes for women, men, kids, and baby | Gap
Hanna Andersson
https://www.zulily.com/join/childrens_apparel.php?tid=googcansrch_children clothes_21589209703_B_Eff_-_(A)CAN-Apparel-ChildrenClothes-_Broad – this is a fantastic site that runs daily deals from all over the web. you join in, they send you emails when they have new stuff, and you can buy heavily discounted, high-end children’s clothing.
high-end
Organic Baby Clothing and Toddler Clothes – Mini Mioche
Neige - designer baby and children’s clothing – Neige, one of my favourite stores!