@Matt thank you for the time line thats really useful!
I have just checked on my Motability account and finally the model has been changed with AP showing as £5749 (£6499 m sport tech pack minus £750) however i asked for sun protection glass at cost £350 which is on the order form too but this amount hasn’t been added to the outstanding amount to be paid. Does anyone know if this is normal or should it be showing in my account to be paid with the outstanding balance.