Whatever the company may say, if you paid by credit card, you can demand a refund for any goods which are not of merchantable quality, not from the sex shop, through the credit card people. In practice few customers ever claim for sex toys because they cant face the embarasment of explaining to the girl from Visa that this gadget is too rubbish to bust a nut with. The sellers of crap like the autoblow rely on this. If you can find the courage, it would be great to hear you get the refund that is rightfully yours.
If you paid by cash then I'm afraid you've been screwed.