Hisense TV not assessed - warrantee not honoured

We bought a Hisense TV Nov 2022 from Stax in Woodlands and were told it holds a 4 YEAR Guarantee. We moved into a small townhouse and need to wall mount the TV due to space. The electric cable was to short to reach the plug and my husband had to cut the cable and extend it in order to reach the plug. 21 September the TV was dead when switched on and only displayed a red flickering light at the bottom. We then took it with the purchase slip to Stax as the TV has a 4 year warrantee. Ha ha haaaaaaa We had to enquire ourself at Stax for feedback and after a week we were told that the technician did come to Stax but did not even look or took the TV for an assessment. Comment on report 30 Sept - Customer joined the power cable. I phoned Stax who gave me a telephone nr for Hisense to phone. I phoned Hisense and were told the same re the cable. I then asked what should we as customers do if a cable is too short to reach a plug. I was told that we should phone Hisense and they will send a technician to join the cable. I asked for proof to as to where in the terms and condition this is indicated and was told it does not form part of the terms and conditions. I then contacted the consumer board and a consumer lawyer gave feedback on Hisense terms and conditions as follow: re the terms & conditions point 6 " .... attempt to repair or tamper with the EQUIPMENT....." meaning - The warranty in relation to the TV should pertain to the actual TV unit and should not have anything to do the cable and plug of the TV. To cut and replace a plug make no logic sense for the warranty to be voided as the cable is not part of the EQUIPMENT and Hisense surely does not place a warranty on the cable and or plug. It is very generous of Hisense to give a 4 year warranty and hide behind the terms and conditions as it suits them not to honour the warranty. I have with success exchanged another product from a different business with a cut cord who had no problem to honour there warranty. It is a shame and I shall never look at a Hisense product again and I shall advice all my families and friends the same.