My Partner posted the T1 PBS dependent extension application on DEC 2017. But there is no acknowledged email or confirmation from UKVI which usually said " We are emailing you to confirm that your recent Home Office application is under consideration'
It already been 4 months without any responses from home office. That makes me quite confused， the dependent visa usually has a decision within 8 weeks.
Does anyone how can I contact the home office and I tried the telephone 0300 123 2241 but I do not sure which option is.