On air tv -ultra explorer sales

I bought an Ultra explorer from On Air in March 2024 with a warranty of 12 months. I in October I called them to say the explorer is faulty and wanted to know about the warranty. They advised me that the warranty is no longer valid for 12 months but only 3 months from date of purchase. The never informed me about the change in warranty. All they are saying now is sorry and they are apologizing for the inconvenience, meanwhile I must still pay my monthly premium until March 2026.

Please be aware. I feel I was ****med.