I was in the same situation then i emailed Homeoffice and got reply saying use the current category you are on so its Tier-1
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Original Email!
Dear Sir,
I would like to book for an appointment for myself and my wife for settlement, When I logged into book an appointment for premium service I am unable to see any option for settlement or ILR as I can see only four options
1) Tier-1,
2) Tier-2,
3) Other main applicant and
4) Dependant in drop down list
I am on Tier-1 general and eligible for ILR in July 2014 and I want to book an appointment for ILR/Settlement so from above drop downlist which option should I select? Please advise?
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Homeoffice reply!
Dear Sir
Thank you for your email of 17th April 2014.
You can select the option relating to your current leave and then check that the fee is correct.
If you require further assistance regarding booking an appointment please email
PEOAppointmentRefunds@homeoffice.gsi.gov.uk directly.
Regards,
Lily Todd
Apply Online E-Support Team