Hello and welcome to the forums. Your's is a guaranteed contest, so you cannot cancel it and get a refund. Only non-guaranteed contests can be cancelled for a refund.
Your contest still has around 2 days left, so you may yet find a name that you like. You can improve chances of that happening by giving detailed and precise feedback on what you like and dislike about names submitted so far, and any trends or directions you like. You can also provide individual feedback on specific entries you think are close to the right name. Quality and suitability of names can be improved greatly by engaging the creatives through open and honest communication.
Here's hoping that you find a name that you like.