Ah, I didn't see that one, at the borrom of a list with several others that start with "Marton" but have another word after.
You mean this exchange
then, in which case (tongue-in-cheek), the best solution for broadband is to move!
As it is, Zen is a good option. I think IDNet possibly have better value packages
with comparable support, but I haven't researched the support side in detail. (If you navigate away from that page on their site, make sure you don't end up on the (better) ADSL2+ page as you can't get that).
Top of the list in terms of probability in getting the problem actually sorted out is AAISP
who seem to have the most sophisticated customer line monitoring of all ISPs. They have a very good reputation for achieving the desired result.
If you need a lot of allowance in business hours you will probably find you cannot afford them for long
. If your usage is mainly consumer hours then they become very competitive, once you understand the unit-based pricing. I can help you with that if you are interested.
See this comparison
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost
. Internet connection -