hotels.com Agreed that I was due a refund, but did not send Internet, Internet

I used hotels.com for a hotel reservation in June, 2011 but had to cancel.  I notified the hotel of the cancellation within the time frame set (noon a few days before my scheduled arrival) and was told i would get a full refund through hotels.com (total amount for the full stay had been charged to my Visa upon making the reservation by hotels.com).

I have called hotels.com 5 times since then because I only received a partial refund to my Visa (less the first day's charges).  The first time I called, the representative called the hotel directly and reported to me that I had cancelled within the allotted time frame and that hotels.com would refund the first day's charges to my Visa.  This did not happen.  I called 4 more times over 3 weeks and the call was disconnected by hotels.com with no call-back to the number I had provided.  

Many reasons were given why I had not received the refund:  I asked to speak to a supervisor and was disconnected.  Hotels.com stated that I should receive refund through a different department and it should be refunded to my Visa in next 72 hours.  This did not happen.  I called twice yesterday and was disconnected both times as well.

I  contacted my Visa provider today and disputed the amount.  

I will never use hotels.com again.