I have been living abroad and have returned to the U.K..
I called Zen Internet to arrange Internet and pay the £19.99 set-up fee.
I was advised that I would also have to pay £50 for an Openreach Engineer to come to the property which was not part of their advertising.
So I declined and have signed up with BT instead where there is no £50 charge.
This is a shame to turn away custom like this.