Reporting a faulty phone line

[#1]

Apologies if the answer to this is online, but I've searched and can't find it.
Is there a way of reporting a noisy phone line other than by phoning technical support?  All the information appears to suggest that it has to be done by phone.
Many thanks.

[#2]

http://www.plus.net/help/?home=helptop
Select phone
Select General Phone Help
Select How to Troubleshoot etc.
Select My line is too quiet or has background noise
Then click on PhoneTroublshooter

[#3]

Oldjim, thanks, I did all that.  The fault (crackling on the line) persisted.  And the final advice was "give us a quick phone call".  
Current waiting time is given as up to thirty minutes and I'm not inclined to use my mobile for that.
Bert

[#4]

As you implied "sod that for a game of skittles"
Try this https://www.plus.net/wizard/?p=wizard&page=22945&wizard_id=38
You can of course use the 0800 number which is free on mobiles

[#5]

Many thanks for that.  Report sent.
Bert