Lavelier at the Tacoma Mall, Tacoma, WA argued and did not give a proportionate refund Tacoma Washington state

I was allergic to the eye serum product and didn't discover that I was until 2.5 months after I bought the product.  The staff argued and yelled at me trying to get me to exchange the product and refused to give me a proportionate refund.  I paid $550 for the eye serum and they only refunded $150.  I should have received 3/4 of the money back or abour $400.  I'm sure I am not the first person to be scammed by them.  I will not shop there again, nor do I recommend their products or staff.