Our Postcode is the same as for the surrounding business' and properties, SY7 0NB.
That postcode is a huge area, so, to be sure, we should check:
a) Those neighbours are immediate neighbours
b) Their predicted speeds are well above the minimum
c) And that some of those neighbours actually get a speed close to their predicted speed
d) There isn't an alternative route back to cab 2 for your cables
Do your cables go to the same pole as the neighbours?
It is certainly possible for the Openreach database to be wrong, such that it won't allow you to order. If that is the cause of your problem, then that is what needs to be fixed - which might be a better approach than installing a new line.
That, of course, really relies on your ISP support staff chasing this on your behalf. If that doesn't work, then you either need to use an ISP that will chase it, or get in touch with Openreach yourself.