Misclicking in the shipments shop

It is very easy to misclick in the shipments shop. When you buy gear mechanically, misclicking and purchasing something you didn't intend is quite easy. It's happened to me and others in the past and it just happened again. I intended to buy one thing and I bought something else, using crystals I was saving. Getting a refund would be great (you can keep the character shards) but I'll be happy if the clicking behaviour is improved so misclicks are not so easy.