There isn’t a lot of point conflating 2 issues ,
Your screenshot of the router stats (message 9 ) clearly shows your connection ( sync ) rate at 13Mb , that is unarguably USO compliant, even if it were not , it’s not simply a case of pointing out your connection is below 10Mb and expecting compensation for that , or expecting it to be immediately resolved, as pointed out , if a mobile can deliver 10Mb speed the USO is satisfied.
Attempting to follow the ‘not meeting the USO’ route , provided BT agree your line isn’t compliant, gives BT 12 months to come up with a solution ( which could be mobile ) and a further 12 months to implement it , that’s assuming your address isn’t already in some commercial rollout plan that would provide the USO speed once that commercial rollout is completed.
The more pertinent point , given that you were guaranteed something that cannot be delivered, the options are already known , ask to be released from your minimum term and find another provider ( this is what the minimum speed guarantee is actually for ) , but the next provider will presumably provide a minimum speed guarantee of around 8-10Mb , so your actual speed will give you no reason to complain, or ‘claim’ under the BT guarantee , until you can renew or leave , you will almost certainly find at renewal , BT will have reduced your ‘guaranteed speed’ to what they should have quoted in the first place .
