Changing wifi channels

[Bullfinch]

I have a vodafone thg3000. 

How and where can you change wifi channel on the above router? 

Logged into my router I go to WiFi tab at the top of the page, then select "WiFi Settings". 

Only choices I see 2.4 Ghz, wifi mode, mixed 802.11b/g/n

Bandwidth 20mhz

And 5 Ghz, mixed 802.11n/ac

Bandwidth 20/40/80 Mhz

There is no option to change channel. I ask as there are a few neighbours on vodafone internet too. 

[Bullfinch]

Oops! Ignore pls, question posted already, 

[MichaelJP]

You can longer change the SSID or the WiFi Channel.

Vodafone have recently changed me to channel 13 causing one of my critical devices not to connect. The only way round this is with an Access Point so you can control things yourself.