Landline ADSL speed far below par & doesn't work!

I keep getting told that the line is fixed but it is never fixed!!!<br> <br> My ADSL Line started up as a 4mb line and everything worked great, then a few months in the line became horrifically slow and when I made an investigation I was told my area could never handle 4mb ever so I was sold a dream.<br> <br> They dropped the line to 2mb and still the connectivity is intermittent and SLOW, much slower than it should be - you can check on the ookla speed test!<br> <br> Why can nobody check the actual land line! every time i am told they check the Exchange then they come to my house and act like they fix something but in actual fact the Line from the exchange is the issue!<br> <br> The technician even told me the lines were not maintained and are deteriorating and this is the cause of all the issues!<br> <br> PLEASE DON'T WASTE MY TIME LOGGING ANOTHER FAULT!!! I need a proper technician to resolve this and not someone who will do a temp fix! If it rains the line dies and my internet will be down for more than a week before someone attends to it!