Disgusting treatment to customer calling them *****

My husband went to upgrade his contract on 27/11/2020 at Vodacom Mall@Reds in Centurion. He was going to get a Huawei P40 Lite. He was told that they did not have the phone in stock. The lady told him that they are running a special on LG Velvet phone for black Friday and that he can take it and if he is not happy with it he can return it in 7 days. He did not get the printout of the contract because he was told to test the phone and return it if not happy. The phone kept losing connection with his Huawei smart watch so he returned it on 3/12/2020 and was told he could not return it. When he requested a printout of his contract he realised that the page he had signed for the return of the phone was removed. He asked for that page and was told that there is no return policy and that he is telling a lie. He trusted Vodacom because he had been a loyal customer for years and thought they would return the loyalty to him instead he was called a ****. He had discussions with them but instead saw that he was no going to win as the lady was being backed up by other employees. My husband is a sweet person and does not want to get anyone in trouble but the treatment he got is disgusting. Vodacom needs to either take their phone and give him the phone he wanted or cancel his contract and their damn phone. This is very disappointing to say the least