YES , u will change or select another product in cart but u did,nt cancel or change your order
after buying products , u will change or cancel ur order by clicking on cancel button

NO deliver charges will apply on any orders , shipping is free on every order

Yes if product is not shipped on your given requirment
or any type of fault . u will be able to contact with Etsyall team or seller and claimed ur order with in 5 days..

It depends on ur given adress , almost 7-15 days required to shipped  products on ur address