MWEB wont allow me to get service elsewhere when they cant connect me...

I am at the receiving end of what i would like to call the worst service experience i have had in my entire life. Almost a month ago i requested MWEB to move my fibre line which i have maintained with them for almost 2 years and still being paid for by the way and they are not hesitant to collect even when service isnt rendered. After growing frustrated with with lack of response i decided to switch over to COOL IDEAS as an alternative service provider. When i app**** with COOL IDEAS i was advised that MWEB was hogging the line and they could not proceed to process my application. This means that MWEB is just stalling things for me deliverately so that i will not get connected even though i have advised them several times that i have cancelled my contract with them completely and yet still they will not release the VUMATEL line application that they are hanging onto. I have also just realized that calls do not drop as drastic as they do with MWEB when using other service providers because apparently MWEB is too busy yet they adverstise soliciting for new business when they have no clue how to satisfy and cater for existing and frustrated clients. MWEB is the worst fibre provider with the worst service ever.