May be you have mistakenly chosen different folios, but if it is a same folio then you can connect with customer care to resolve the issue.
Doesn’t really matter in whichever platform you invest. But investing directly via AMC’s website can give you the benefit of direct plan.
From last 6 months market is not giving any return. The fund is good, you just need to have some patience.
If you have plan of investing for more than 5 years. No need to worry about anything. You can even invest in growth funds.