Ordering Shoes

Am I allowed to go to a store which I have a family discount at and buy shoes from that store on Chol Hamoed? I would go after chol hamoed, but if they don’t have a the shoes I need, I need to do a special order which takes sometimes 2 weeks to arrive, and I will be returning back to Israel within that time and I would lose the opportunity.

Yes if you need the shoes for Yom Tov

Okay it is not for yom tov, but I might miss the opportunity to get the shoes if I wait too long, so is that okay?

In your case you can purchase on chol hamoed