Over-18 dependant when both parents have ILR

[jimin95]

Hello! I'm an over-18 PBS dependant visa holder which will expire in August 2018. My parents have just been granted ILR. My dad was granted last year and my mother was granted last month. Actually, my sister, mother and I had applied for ILR as a family, but we were refused and only my mother was granted). Now, my sister and I will be applying for ILR. We both came to UK in 2013.

I'm already 21 years old and we have finished college last year so I'm curious if letters from schools are required (mandatory) as supporting evidence that we've not been living an independent life. I've seen the list and it said that they only need TWO supporting documents from the list. Would a bank statement and a letter from GP suffice? And are we allowed to use PEO? I think I've read somewhere that only postal applications are applicable for this kind of case where a dependant is applying and both parents have already been granted ILR. We really need to get the visa ASAP bc we're due for a holiday in July.

Also, we were refused twice when we applied.
1st time: refused due to missing documents (caseworking error) so we were qualified for Admin Review.
Admin review result: refused us again because we used an outdated document.

Will these refusals have any effect to our application? Do we need to include this information when we make a fresh application?

Thanks in advance! This forum really helps a lot of people.

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