Lifeproof Poor customer service..failure to process an approved refund for a returned case. Nationwide

I made the mistake of ordering a Lifeproof case for my I phone in April.  After receiving the case, I discovered that I had the wrong model.....It was my fault.  I contacted Lifeproof and inquired about a return or refund.  I was sent an answer saying I could return my case for a refurn,,,,less a restocking fee.  I sent the case back,,,,and 4 weeks later I receive an email saying that they just noticed that they didn't ship my case????? I reply with an question as to the whereabouts of my refund.  Their next reply was that I can't return my case???? it has been over 30 days...I reply that I already sent back....now they are saying they never received....wow.....very unprofessional and unorganized company.....would recommend to anyone,,,,Don't order from Lifeproof......