Looks like another Connect screwup

Maybe one day Sky will give some guidance to Connect customers right from the start. It would save them a lot of problems.
Go to
BT Speedtest enter your phone number then your ADSL username. This will do an official BT speed test and show your present profile. Your ADSL username is <the MAC number of your router, no colons, followed by> @skydsl You can also obtain this from the router by using one of the utilities available on the forum.
You should be able to use this report when phone Sky, but it will depend on who takes your call as Sky TS do not seem to be trained for Connect customers. This tester is always busy, it could take several attempts to get on.