Add to Basket "Shopping Basket"

When I click on a product and then click the “Add to Basket” the shopping basket shows “Buy Another” underline in blue (which I do not need and want to delete) it doubles the first product I clicked on even if I try to add a different product to my basket. All my products are “One of A Kind” so I do not need or want this feature. How do I delete it from my shopping basket? Thanks.