Refund refusal

My husband bought me a Christmas present of 3 bras. I bought myself before Chrismas 3 bras at 1/3 of the price so I have no need for another 3. So today i tried to return them just to be told i cannot return, i have to get a voucher or change for something else (thats also 1/3 more expensive than in other shops) So sad that La Senza can take your money but refuse to refund it. I (and my husband) will NEVER EVER put another foot in a LaSenza.