I just again spoke to Catcha on the 0390 number and got the Catcha reception desk. They say there is no third party reservation service. Unless....
The only possibility is that you somehow you called one of the multiple hotel reservation companies that the search engines tend to show prominently.
Jamaican businesses can and are able to do things as simple as reservations. I called three times today and got their office.
My only other guess is that for some reason your phone provider is mis-directing the call to a third party. Nothing is wrong with Catcha's office phone.