RPi3 WiFi Channels 12 & 13

Does the RPi3 actually support channels 12 and 13 on the 2.4Ghz allocation?.
I’m running Ubuntu Mate 14.10.3 with updates. WiFi access to channels 1 to 11 all functional but I am unable to access either of these channels, changing the AP channel is not an option.
Is this an oversight, a bug, or a feature

see the table under Interference Concerns section.

In the United kingdom of Great Britain we are allocated channels 12 and 13 in the 2.4Ghz band. That is why I’m seeking a method for the RPi3 to tune these channels.
I have set the location in the clock settings and I have edited /etc/default/crda to UK and GB, both upper and lower cases have been tried, without success.

Hi pencoys. I am facing same problem now. Did you find a solution?
Anyone else can help? I am in Spain allocated to channel 12.