Well, i have had openreach out 5 times now to sort my issues.
They have swapped the pairs numerous times, remade joints and nothing has made any difference whatsoever.
The ISP put in a request for a 'lift & shift', however, the engineer said he was reluctant to do this as he doesn't know what each port is rated at and i could end up on a slower one, as I am on a 105.
But how did he know mine was a 105?
He explained that although the contract is capped at 80, the ports are rated from 90-130 Mbps to aid pushing the speed further up the line.
He also said that if he puts in a request to do this anyway, if i did end up on a lower card, it could not be changed back for some reason.