Cobblers/Shoe Repair who do Shoe lifts?

My toddler has been prescribed a 3 cm shoe lift (added to any shoe)-the problem is most of the orthotic/prosthetic locations in Houston are so hard to get an appointment, that it’s taken over two weeks to get a response for several offices (looks like we’re 8 weeks away in some cases to get seen!)

A FB group for kids with this congenital problem suggested going to a shoe repair place or cobbler who may be able to add a lift to her shoe.

I know it’s a stretch, but has anyone know of a business or have recommendations on something like this? Google hasn’t yielded a local place like that (only online businesses in different states)

Thanks H town!