MWeb not supplying the contract agreed speed

MWeb is billing me for a 50mbps line but providing less than 50% of this at best and on occasion as low as 13mbps. The rea**** is dirext from the fibre line that is it is before the router. They have had my query for a week without resolving. Mweb is therefore over charging me, and if you enter into a contract with them they may charge you for every month for something you don't receive, not read nor understand your query and make little or no effort to resolve. Before appointing MWeb as your service provider please consider that you may receive simi**** treatment and be expected to pay for something you don't receive.