upgrade doesn't provide same service

ref *** Telkom are discontinuing copper. the range I have with current telkom modem does not give me wifi throughout my home. The replacement landline will give same unacceptable service. Telkom will not be supporting copper so therefore they are unable to offer the same service and will expect me to pay for an unsupported technology. Solution is 2 telkom phones on the same number to give the coverage unless they have a better solution. Okay I will can cancel the contract is not a solution .