Vumatel is ******** elderly people

Wi-fi name:VC-1*** . As elderly couple we were given a flyers for Wi-fi and we call them. They completed installation on the 30th/Sep that was a free trial. On the 30th/Oct we paid 1st installment as they are aware that 30/31st is our pay day. On the 27th/Nov that was Saturday evening, we receive a massage saying Wi-fi is suspended due to non payment ,there and then we had no Wi-fi until now ,we tried to contact them but they are not contactable at all. Please help us we don't like the fact that they are still demanding payment whereas they left us half way ,we expected their suspension massage on the 30th not earlier that that .