For applying for an extension with a TR60 visa, is the usual TM7 form still usable or is it better to ask for one at MTT and fill it out there?
TLDR : Answer Summary
When applying for an extension with a TR60 visa, the TM7 form is indeed still the application form to use. It's important to ensure that the form is printed correctly, front and back, and to verify that you have the latest version, as older forms have different information regarding extension fees.