exactly the same just happened for one of our customers - but worse
promised 30Mbps (still shows this now on the wholesale adsl checker) so they ordered
two brand new phonelines
40 Mbps fttc @ £30 per month
20Mb symetrical GEA @ £225 per month
fttc peaks at 5
gea is now stalled at install for 5 months - "escalated with a director"
openreach cant explain and send the obligatory "we may have to charge you" even though it has been this speed on the fttc for 5 months, multiple reboots and router change...
brilliant!