iFitnaPlantar Fasciitis Arch Support Orthopedic Insoles Relieve Flat Feet Heel Pain Shock Absorption Comfortable Insoles

I am a size 3 what size do I buy please

How do I return this product as the raised part on the left foot is in the wrong position and not the same as the right foot. The right foot is fine

Do these correct deformation of the toes?

Will these cause my shoes to become to small for me? This is what happened last time I tried a different pair