200k UK Applicants further documents queries & Interview

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Any one who applied under 200k category and got letter from UK BA to provide further documentation ? If so could you please answer below .

Could you please give more details about your query
Could you please give more details about your Interview with home office (If applicable)

1) Switching category from Tier 4 or Tier 2 or any other ?
2) Applied date ?
3) Bio-metrics given date ?
5) Funds location UK or Abroad ?
6) Funds verification details ?
7) How many days you have maintained the investment funds ? documents attached to your application ?
9) How many days your have given to submit all documents requested in the query?
13) your education qualifications ?
14) Business plan? one or more business details (if applicable)
15) Market research documents?