@Johnf621 EE should be able to tell you who is not accepting it, if EE side or the OR side, not sure if TT can be doing anything as the gaining provider has all the control which in your case is EE, have you had any e-mail notification at all when the switch is tried from TT saying for example we see that you have requested EE to take over the connection etc?
The whole object of the OTS if in your case it is working correctly, is you only contact EE and do the OTS, then run through all the checks etc, and contact TT to be sure that the line exist's to take over both Broadband and Landline if you are doing both at the same time, landline can be dropped if it is not an essential requirement to be taken and transferred to EE.
The fact that FF is available to your address as per the BTW you posted, then you will be upgraded connection wise from the copper to fibre, as OR are doing so and trying as much as possible to get the copper lines gone.
