I note that Ofcom seems to have ditched its 0845 number, at least on its main contact page (http://www.ofcom.org.uk/complain/) for its contact center. The explanatory note about the few circumstances where 0845 would be cheaper than 020 has now disappeared (or at least I can't find it).  

I will say however that Ofcom seem to be open to the possibility of realising that they may still have got it wrong with these proposals and that they may face major embarassment over their leaving 0845 untouched for several more years, and also not making 0844 regulated by ICSTIS (thus leaving the door open for all 0870 scammers to move there in spite of all the rubbish we usually hear spouted about 084/7 being so great for number portability).  I am less hopeful that Ofcom will be persuaded that 0844 and 0871 users have to move their services over to an 09 prefix.  But they might accept much more control of how 0844 and 0871 are marketed and might be prepared to see 0845 dial up users forced to 0844 so as to allow 0845 to be priced at geographic rate at the same time as the 0870 changes.  They also seemed open to the possibility of blocking off the current proposed loophole of allowing higher call charges to continue on 0870 so long as there is a call price announcement.