Superior Vacuums

I purchased two Dyson v11 filters online for my two vacuums. They were not OEM (this was expected) however they did not fit properly and I wanted to return them. First I was told that I wasn't putting them on right which is not the case. Then I was told they would not honour their online return policy which states if you are unhappy for any reason they would refund %110 as well as provide return prepaid delivery. They would only refund what I paid and would not pay return delivery because as far as they were concerned they sent the right parts. So now I have defective filters I can't use and I have to pay for the return shipping if I want a refund. Definitely not what they promise on their website.